WMS glossary
Definitions of 230 terms used in warehouse and WMS projects. They describe established operational usage and make no product, price or market-share claim.
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Core concepts
- 3PL (Third-party logistics)
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A provider that runs storage and distribution on your behalf. It uses its own WMS and needs client-level stock separation, billing for services and reporting.
See also: Multi-client warehouse, Service billing
- Directed work
-
The operator takes the next task from the system; location, quantity and sequence appear on the screen. It is the opposite of paper or memory-driven work; deviations are recorded.
See also: RF operation, Exception queue
- ERP
-
The core system that holds finance, purchasing, sales, production and inventory records. It knows stock quantity; in most deployments it does not run in-warehouse locations, tasks and RF flows.
See also: WMS (Warehouse Management System), ERP–WMS integration
- Exception queue
-
Work that breaks a rule (shortage, damage, missed scan, mismatch) landing on a separate list. If the queue is not cleared, the system looks live while the floor stalls.
See also: Short pick, OSD (overage / shortage / damage), Directed work
- Multi-client warehouse
-
Keeping several clients' stock, user permissions and reports separate in the same facility. It is the base requirement of 3PL deployments.
See also: 3PL (Third-party logistics), Service billing
- Omnichannel fulfilment
-
Serving store, marketplace and own-site channels from the same stock. In the warehouse it requires channel priority, different packing and its own returns flow.
See also: OMS (Order Management System), Returns management
- Service billing
-
Calculating charges per storage, movement, value-added service and shipment in a 3PL. The basis of the calculation is the movement records in the WMS.
See also: 3PL (Third-party logistics), Value-added services (VAS)
- WMS (Warehouse Management System)
-
Software that runs the work inside a warehouse: it records every movement at location and stock level from receiving to shipping, assigns it as tasks and keeps it traceable.
See also: ERP, WCS (Warehouse Control System), TMS (Transportation Management System)
Receiving and putaway
- ASN (Advance shipping notice)
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The supplier announcing a shipment in advance: items, quantities, pallets and label data. With an ASN receiving is scan-based; without it, it is count-based.
See also: Goods receipt, SSCC (serial shipping container code)
- Blind receipt
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Making the operator count without showing the expected quantity. It improves counting discipline and exposes supplier shortages, at some cost in time.
See also: Goods receipt
- Cross-docking
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Routing incoming goods straight to shipping without putting them away. It lowers holding cost but demands accurate ASNs and tight timing.
See also: ASN (Advance shipping notice), Staging
- Goods receipt
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Taking incoming goods into stock by counting, checking and recording them. Errors made here (wrong item, short quantity, skipped check) propagate to every later process.
See also: ASN (Advance shipping notice), Blind receipt, Quality control, hold and release
- Inbound delivery
-
The system document for a shipment expected from a supplier or another warehouse. It is born from an ASN or purchase order; receiving is posted against it.
See also: ASN (Advance shipping notice), Goods receipt, Outbound delivery
- OSD (overage / shortage / damage)
-
Receiving that counts more, less or damaged goods versus the document. The three basic exception types; each needs its own reason code, photo and supplier notice.
See also: Goods receipt, Reason code, Damage code
- Putaway
-
Moving received goods to a suitable location. With rule-based putaway the system suggests the location from item attributes, volume, turnover and equipment constraints.
See also: Slotting, Replenishment
- Quality control, hold and release
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Keeping goods in a blocked status until they are judged usable, then releasing them. It is a mandatory step in food, pharma and automotive.
See also: Stock status, Quarantine area
- Quarantine area
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The physical area where blocked, damaged or pending goods are separated. It is the shop-floor counterpart of the blocked status in the system.
See also: Quality control, hold and release, Stock status
- Replenishment
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Feeding pick-face stock from reserve locations. It is triggered by min/max levels or by orders; late replenishment stops picking.
Inventory, locations and counting
- ABC analysis
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Classifying items by movement volume or value. In the warehouse it is usually based on pick frequency and drives slotting and count frequency.
See also: Slotting, Cycle count
- Cycle count
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Counting a portion of the warehouse at regular intervals without stopping operations. It catches errors earlier than a year-end full count.
See also: Full (physical) count, Inventory accuracy
- Expiry date
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The last date an item can be used. It affects both putaway and picking rules; remaining shelf life is often a contractual requirement.
See also: FEFO / FIFO, Lot / batch
- FEFO / FIFO
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FEFO: the nearest expiry leaves first. FIFO: the first received leaves first. Food and pharma use FEFO; durable goods usually use FIFO.
See also: Expiry date, Lot / batch
- Full (physical) count
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Counting all stock at once, usually with operations halted. It is needed for financial closing but does not by itself sustain accuracy.
See also: Cycle count
- Location
-
A defined place where stock sits: aisle, rack, bin or bulk area. Without an addressing scheme, “we have stock” is not operationally useful.
See also: LPN / pallet ID, Location-to-location transfer
- Location capacity
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A bin’s limit in volume, weight or pallet count. The WMS cuts putaway suggestions against that limit; undefined capacity produces blocked aisles and damage.
See also: Putaway, Location, Cube utilisation
- Location freeze
-
Blocking inbound and outbound moves to an address until a count or quality decision ends. Counting an unfrozen location produces variance because it keeps moving.
See also: Cycle count, Quarantine area
- Location-to-location transfer
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Moving stock from one location to another. Unscanned moves are the most common cause of count discrepancies and mis-picks.
See also: Location
- Lot / batch
-
A number given to goods produced or received under the same conditions. It is the basis of recalls, complaint investigation and shelf-life management.
See also: Expiry date, Serial number, FEFO / FIFO
- Negative stock
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The system showing a negative balance. It usually signals out-of-sequence postings or unscanned moves and should be blocked by rule.
See also: Inventory accuracy
- Reason code
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A standard reason written on an adjustment, shortage, damage, return or count variance. Free text that cannot be reported blinds quality and stock analysis.
See also: Stock adjustment, OSD (overage / shortage / damage), Damage code
- Serial number
-
A number identifying a single physical unit. Used for warranty, service and high-value tracking; it requires its own scan at picking and shipping.
See also: Lot / batch, Traceability
- Slotting
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Deciding which item sits in which location based on turnover, volume, weight and affinity between items. It is an analysis that must be repeated regularly.
See also: ABC analysis, Pick face
- Stock adjustment
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A deliberate change to system quantity after a count or finding. An adjustment without authority, reason code and dual control breaks traceability.
See also: Reason code, Dual control, Cycle count
- Stock status
-
States of the same item such as available, blocked, quarantined, damaged or reserved. Status determines what is actually sellable.
See also: Quality control, hold and release, Reservation
- Stock transfer order (STO)
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A planned goods movement between two warehouses or sites. It creates an outbound at the sending site and an inbound at the receiving site; in-transit stock is tracked separately.
See also: Outbound delivery, Inbound delivery, Pipeline stock
- Traceability
-
Being able to show retrospectively which lot an item came from, where it sat and who received it. It is the measurable counterpart of a recall.
See also: Lot / batch, Serial number, İTS (Pharmaceutical Track and Trace System)
Picking and orders
- Allocation
-
Deciding which stock fulfils which order. Priority rules are set by delivery time, channel, customer and remaining shelf life.
See also: Reservation, Wave
- ATP (available to promise)
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Quantity that can be promised after reserved and blocked stock is subtracted. ERP or OMS calculates it; if WMS status and reservations are stale, the promise breaks.
See also: Reservation, Stock status, OMS (Order Management System)
- Batch picking
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Picking several orders in one trip. It reduces travel but adds a sortation step.
- Cluster picking
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Picking several orders on one cart, each in its own tote. Unlike batch picking, sortation happens during the trip.
See also: Batch picking, Discrete picking
- Discrete picking
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The operator completes only one order per trip. It is simple and low-error, but travel time is high.
See also: Picking, Cluster picking
- Pick face
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The fixed, usually ground-level location where the operator picks an item. Keeping fast movers near the pick face shortens travel time.
See also: Replenishment, Slotting
- Pick list
-
The item, quantity and location breakdown of a picking task. It can be delivered on paper, RF device, voice or light.
See also: Pick path, Voice picking
- Pick path
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The order in which an operator visits locations. A good path shortens travel; when slotting changes, the path logic must be revisited.
- Pick-and-pass
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Completing an order by passing a tote or carton from zone to zone. It is the conveyor-based form of zone picking.
See also: Zone picking, Conveyor
- Picking
-
Taking ordered items from their locations. It consumes the largest share of warehouse labour, so method choice drives cost directly.
See also: Batch picking, Zone picking, Wave
- Reservation
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Locking stock allocated to an order so it cannot be given to another. Without reservation discipline the same stock gets sold twice.
See also: Allocation, Stock status
- Short pick
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The expected quantity is not found at the location. The WMS then triggers replenishment, offers an alternate location or leaves the order partial; without a reason code the root cause is lost.
See also: Reason code, Replenishment, Partial delivery
- Substitution
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Giving an equivalent SKU instead of the ordered one. Without a written rule, customer contract and lot/expiry limits, the wrong item ships.
See also: SKU (stock keeping unit), Allocation
- Voice picking
-
Tasks given by headset and confirmed by voice. It frees the hands; noise, language and check-digit design decide whether it works.
See also: Pick list, Pick-to-light
- Wave
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Grouping orders and processing them together in a time window. Waves are planned around carrier cut-off times and shipping capacity.
See also: Waveless processing, Cut-off time
- Waveless processing
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Processing orders continuously as they arrive. Common in e-commerce with fast delivery promises; capacity balancing is critical.
See also: Wave
- Zone picking
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Each operator picks only in their zone and the order passes between zones. It reduces congestion in busy warehouses.
See also: Picking, Pick-and-pass
Packing and shipping
- Cartonization
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Calculating which carton and how many cartons an order fits, from size and weight. A wrong carton raises freight and damage; the calculation depends on master-data dimensions.
See also: Packing, Dimensions and weight, Dimensional weight
- Cut-off time
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The latest time an order can be accepted for same-day shipping. Most warehouse planning is built backwards from it.
See also: Wave, Dock scheduling
- Dimensional weight
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The weight a carrier derives from carton volume. It is compared with actual weight and the greater is charged, so empty space is direct cost.
See also: Packing, Carrier integration
- Dock scheduling
-
Planning which vehicle arrives at which door and when. A dock bottleneck hides any speed gained inside the warehouse.
See also: Staging, Yard management
- Kitting
-
Turning several items into a single sales unit in the warehouse. It requires a stock conversion between components and the kit.
See also: Value-added services (VAS)
- Loading
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Transferring a shipment to the vehicle and closing it as shipped in the system. Load scanning is the last control that catches a missing or misrouted parcel.
See also: Staging, Dispatch note
- Outbound delivery
-
The system document for a shipment leaving to a customer or another warehouse. Allocation, picking and loading close against it.
See also: Allocation, Loading, Inbound delivery
- Pack station
-
A workstation combining scale, label printer, carton stock and screen. Its design sets the upper limit of shipping capacity.
See also: Packing
- Packing
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Placing picked items in a suitable carton, closing, labelling and weighing it. Carton choice directly affects freight cost and damage rate.
See also: Pack station, Carrier integration, Dimensional weight
- Partial delivery
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Shipping what is on hand and leaving the rest open. If contract or channel rules forbid it, the WMS blocks a partial close.
See also: Short pick, Backorder, Split shipment
- Returns management
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Receiving returned goods, inspecting them and separating resellable, repairable and scrap. In e-commerce it is a separate operation.
See also: Omnichannel fulfilment, Stock status
- Reverse logistics
-
Flow from customer back to supplier: returns, warranty, packaging and recycling. Its cost is underestimated in most deployments.
See also: Returns management
- Sortation
-
Separating batch-picked items by order, channel or carrier. Done manually, with put-to-light or with sorter equipment.
See also: Batch picking, Sorter
- Split shipment
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One order leaving in more than one wave, door or carrier. Customer communication and dispatch-note lines must be split to match.
See also: Partial delivery, Outbound delivery
- Staging
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Gathering shipment-ready goods in front of the door by shipment or carrier. Area and label discipline prevent mix-ups.
See also: Loading, Dock scheduling
- Value-added services (VAS)
-
Extra warehouse work such as labelling, kitting, gift wrapping, pressing or counting. In 3PL it is billed separately and planned as labour.
See also: Kitting, Service billing
- Yard management
-
Tracking vehicles and trailers on site. In large distribution centres it works together with dock scheduling.
See also: Dock scheduling
Data, barcodes and identifiers
- Aggregation
-
The parent–child record of which serial or pack sits in which case, and which case on which pallet. A broken hierarchy in pharma or medical devices produces notification errors.
See also: Serial number, Handling unit, İTS (Pharmaceutical Track and Trace System)
- Catch weight
-
Items whose unit weight varies (meat, cheese, roll goods). Stock is held in both pieces and kg; the scale record at shipping sets the invoiced quantity.
See also: Unit of measure conversion, Dimensions and weight
- Check digit
-
A trailing digit on a barcode or location code that catches a mis-scan. Also used in voice picking to confirm the location.
See also: GTIN / EAN barcode, Voice picking
- DataMatrix / 2D code
-
A two-dimensional code that fits much data in a small area. On pharmaceutical packs it carries product, lot, expiry and serial number.
See also: İTS (Pharmaceutical Track and Trace System), Serial number
- Dimensions and weight
-
Item length, width, height and weight. Carton selection, pallet planning and freight calculation rely on it; without it, teams guess.
See also: Dimensional weight, Master data
- GLN (global location number)
-
A GS1 identity for a logistics place such as a site, warehouse or door. It is the standard “from–to” field on ASNs and e-documents.
See also: GTIN / EAN barcode, ASN (Advance shipping notice)
- GS1-128 and application identifiers
-
Encoding fields such as lot, expiry and quantity inside a barcode with standard codes. One scan can then fill several fields.
See also: GTIN / EAN barcode, SSCC (serial shipping container code), Lot / batch
- GTIN / EAN barcode
-
A number that identifies a product globally. Readable, unique supplier barcodes are what make scan-based receiving possible.
See also: SKU (stock keeping unit), GS1-128 and application identifiers
- Handling unit
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A stock package that physically moves as one: pallet, cage, case. The system holds its contents, weight and identifier.
See also: LPN / pallet ID, SSCC (serial shipping container code)
- LPN / pallet ID
-
A unique identifier given to a pallet, case or handling unit. It allows the whole unit to be moved and tracked with a single scan.
See also: SSCC (serial shipping container code), Handling unit
- Master data
-
Item, location, supplier and customer definitions. Missing master data is a leading cause of WMS project delay.
See also: SKU (stock keeping unit), Location
- RFID
-
Reading by radio frequency without line of sight. Used in apparel and asset tracking; tag cost and read reliability decide whether it fits.
See also: Handheld terminal and scanner
- SKU (stock keeping unit)
-
The code of each distinct sellable variant. A different colour, size or pack is a different SKU; SKU count is an input to warehouse design.
See also: GTIN / EAN barcode, Unit of measure conversion
- SSCC (serial shipping container code)
-
A number uniquely identifying a logistics unit such as a pallet or case. With an ASN it reduces receiving to a single scan.
See also: ASN (Advance shipping notice), LPN / pallet ID
- Unit of measure conversion
-
The factors between each, case and pallet. A wrong factor is the quietest source of stock discrepancies.
See also: SKU (stock keeping unit), Inventory accuracy
Integration and systems
- API
-
The interface through which systems query and write each other's data. The basis of real-time integration; rate limits, authentication and error handling belong in the contract.
See also: Webhook, ERP–WMS integration
- Carrier integration
-
Getting label, tracking number and rate from the carrier's system. Label format and returns flow differ by carrier.
See also: TMS (Transportation Management System), Packing
- EDI
-
Exchanging documents such as orders, dispatch notes and invoices between companies in a standard format. Common in retail chains and automotive.
See also: ASN (Advance shipping notice), IDoc
- ERP–WMS integration
-
Passing order, material, stock and movement data between the two systems. The critical point is that movement types and stock statuses mean the same thing on both sides.
See also: Movement type, IDoc, API
- IDoc
-
The document structure SAP systems use to exchange data. In WMS integrations it can carry material, order and movement messages.
See also: ERP–WMS integration, Movement type
- Middleware
-
A layer that transforms, queues and retries messages between systems. It eases troubleshooting but adds one more dependency.
- Movement type
-
The code that determines a stock movement's accounting and inventory effect in the ERP. Mapping every WMS action to the right type is the crux of integration.
See also: ERP–WMS integration, IDoc
- Offline mode
-
Keeping operations running, even if limited, during a connection loss and syncing records afterwards. A question to ask in every cloud deployment.
See also: Cloud (SaaS) deployment, RF operation
- OMS (Order Management System)
-
Takes orders from sales channels and decides which warehouse, which stock and which sequence fulfils them. In multichannel retail it sits in front of the WMS.
See also: Omnichannel fulfilment, Allocation
- Reconciliation
-
Regularly comparing stock and movements in two systems. It is the control that must not be dropped after integration goes live.
See also: ERP–WMS integration, Inventory accuracy
- TMS (Transportation Management System)
-
The system that manages shipping outside the warehouse: carrier selection, routing, freight cost and delivery tracking. WMS knows the parcel, TMS knows how it travels.
See also: WMS (Warehouse Management System), Carrier integration
Automation and equipment
- AGV
-
An automated vehicle that follows a fixed route or guide. Changing the route is an infrastructure job.
See also: AMR (autonomous mobile robot), AS/RS (automated storage and retrieval)
- AMR (autonomous mobile robot)
-
A transport robot that senses its environment and plans its own path. More suited to incremental investment and layout change than an AGV.
See also: AGV, Goods-to-person
- AS/RS (automated storage and retrieval)
-
A system where machines store and retrieve goods automatically. It delivers density with a long-term investment and maintenance commitment.
See also: WCS (Warehouse Control System), Goods-to-person
- Conveyor
-
Moving cartons and pallets along a fixed line. It speeds flow but permanently fixes the layout and resists change.
See also: Sorter, WCS (Warehouse Control System)
- Forklift terminal
-
A screen and scanner mounted on the vehicle, allowing pallet moves to be recorded without dismounting.
See also: Handheld terminal and scanner, RF operation
- Goods-to-person
-
Bringing goods to the operator instead of the operator walking. It removes travel time and makes station capacity the new bottleneck.
See also: AS/RS (automated storage and retrieval), AMR (autonomous mobile robot)
- Handheld terminal and scanner
-
The device on which operators receive tasks and scan. Device choice, screen flow and charging plan directly affect productivity.
See also: RF operation, Voice picking
- Pick-to-light
-
Lights and displays at the location showing the quantity to take. Fast in dense, compact picking areas but needs fixed investment.
See also: Voice picking, Put-to-light
- Put-to-light
-
A sortation method where lights show which order a picked item belongs to. Used in the sortation step after batch picking.
See also: Batch picking, Sortation
- RF operation
-
Tasks delivered to handheld devices in real time over wireless. A coverage gap drops picking back to paper.
See also: Handheld terminal and scanner
- Sorter
-
Equipment that automatically separates items by destination. It replaces manual sortation at volume; handling misreads is the critical detail.
See also: Sortation, WCS (Warehouse Control System)
- Very narrow aisle (VNA)
-
A layout whose aisle fits only a specialist truck. Capacity rises; without WMS task sequence and collision rules the aisle locks.
See also: Warehouse layout, Forklift terminal
- WCS (Warehouse Control System)
-
The layer that drives equipment such as conveyors, sorters and AS/RS in real time. WMS answers “what to do”, WCS answers “how the machine does it”.
See also: WES (Warehouse Execution System), AS/RS (automated storage and retrieval), Sorter
- WES (Warehouse Execution System)
-
A layer that balances work between WMS and WCS: it sequences work, waves and equipment load in real time. It is a separate module in some products and part of the WMS in others.
See also: WCS (Warehouse Control System), Wave
Measurement and labour
- Capacity plan
-
Deriving people, equipment and space needs from expected volume. Campaign and seasonal peaks are calculated separately.
See also: Wave, Warehouse KPIs
- Cube utilisation
-
How much of a rack’s or vehicle’s fillable volume is actually filled. Low use wastes rent; overfill causes damage and lost access.
See also: Location capacity, Dimensional weight
- Dock-to-stock time
-
Time from goods hitting the dock to becoming sellable stock. The clearest measure of receiving bottlenecks.
See also: Goods receipt, Warehouse KPIs
- Dwell time
-
How long goods or a vehicle sit at a point (door, staging, quarantine). Rising dwell is a flow problem, not a capacity one.
See also: Dock-to-stock time, Staging, Dock scheduling
- Inventory accuracy
-
How closely system quantity matches physical quantity. Measured per location; measuring it per SKU tends to overstate the real picture.
See also: Cycle count, Warehouse KPIs
- Labour management (LMS)
-
Comparing task times with standards to measure performance. Applied without fair standards, it erodes trust.
See also: Lines per hour, Warehouse KPIs
- Lines per hour
-
Pick lines an operator completes per hour. The effect of method and layout changes shows here first.
See also: Warehouse KPIs, Picking
- OEE (overall equipment effectiveness)
-
Machine yield as availability × performance × quality. It is meaningful for a sorter or AS/RS; it does not map cleanly onto human picking.
See also: Warehouse KPIs, AS/RS (automated storage and retrieval), Sorter
- Order accuracy
-
The share of orders shipped without error. It maps directly to customer complaints and return cost.
See also: Warehouse KPIs, Returns management
- OTIF (on time in full)
-
The share of orders delivered both on the promised date and complete. Missing either condition disqualifies the order.
See also: Warehouse KPIs
- Perfect order
-
The right item, quantity, documents, time and an undamaged delivery. A composite measure that folds document and damage into OTIF.
See also: OTIF (on time in full), Order accuracy, Fill rate
- Task interleaving
-
Combining outbound and return tasks in one trip to cut empty travel, e.g. a nearby pick after putaway. Distance and equipment limits must be written into the rule.
See also: Directed work, Putaway
- Warehouse KPIs
-
Indicators that measure operations: lines per hour, order accuracy, on-time shipping, inventory accuracy, dock turnaround. An unmeasured improvement claim cannot be verified.
See also: Lines per hour, Order accuracy, OTIF (on time in full)
Project, contract and cost
- Cloud (SaaS) deployment
-
Running the software on the vendor's infrastructure under a subscription. Updates sit with the vendor; data location and outage plans must be agreed with the customer.
See also: On-premise deployment, Data residency
- Configuration
-
Adapting the product to processes through settings, without code changes. Preferred over customisation because it survives upgrades.
See also: Customisation
- Customisation
-
Changing the standard product at code level. It fits the process exactly but raises upgrade cost and lock-in.
See also: Configuration, Scope creep
- Demo script
-
A demonstration where the vendor runs your process step by step with your data. Asking for a script instead of a canned demo exposes real capability gaps.
See also: RFP (request for proposal), UAT (user acceptance testing)
- Go-live
-
Starting to use the system in real operations. Stock cutover, parallel running and a rollback plan must be written beforehand.
See also: UAT (user acceptance testing), Stock cutover
- Licence model
-
What the fee is based on: user, concurrent user, device, site, order volume or transaction. The model decides how cost grows as you grow.
See also: TCO (total cost of ownership)
- On-premise deployment
-
Running the software on the organisation's own servers. Control increases, and so does responsibility for updates, backup and continuity.
See also: Cloud (SaaS) deployment
- Reference call
-
A call with the vendor's existing customer, ideally on a deployment similar to yours. Without written questions it turns into a sales pitch.
See also: RFP (request for proposal)
- RFP (request for proposal)
-
A document stating requirements and evaluation criteria, asking vendors for structured proposals. A precondition for comparable quotes.
See also: Demo script, Reference call
- ROI and payback period
-
How long the savings take to cover the investment. Inputs must be measurable; a savings claim based on assumption cannot be verified.
See also: TCO (total cost of ownership), Warehouse KPIs
- Scope creep
-
Requirements expanding beyond the written scope during a project. The most frequent cause of schedule and cost overrun.
See also: RFP (request for proposal), UAT (user acceptance testing)
- SLA (service level agreement)
-
Committed support response, resolution time and availability. Without a stated measurement method and exceptions it cannot be enforced.
See also: Source code escrow, Support and maintenance
- Source code escrow
-
An agreement that releases source code to the customer through a third party if the vendor ceases operations. Raised in critical on-premise deployments.
See also: SLA (service level agreement), On-premise deployment
- Stock cutover
-
Counting stock in the old system and loading it into the new one by location. In most projects it is the riskiest weekend.
See also: Go-live, Full (physical) count
- Support and maintenance
-
Defining bug fixing, version upgrades and consulting scope in the contract. Annual maintenance is a permanent line in TCO.
See also: SLA (service level agreement), TCO (total cost of ownership)
- TCO (total cost of ownership)
-
The sum of licence or subscription, implementation, integration, hardware, training, support and internal effort over a period. Comparing quotes on licence price alone is misleading.
See also: Licence model, ROI and payback period
- UAT (user acceptance testing)
-
Testing processes with real users and real data before go-live. Without written acceptance criteria, testing never ends.
See also: Demo script, Go-live
Turkey: regulation and customs
- Bonded warehouse
-
A place where goods under customs supervision are stored without duties paid. Stock movements must stay consistent with customs declarations.
See also: Free zone, Customs declaration
- Cold chain
-
Keeping goods within a defined temperature range and evidencing it with records. In food and pharma, temperature logs are a condition of acceptance.
See also: Expiry date, Traceability
- Customs declaration
-
The document declaring goods for customs procedures. In a bonded warehouse, stock records and declaration lines must be traceably linked.
See also: Bonded warehouse
- Data residency
-
The country where data is physically stored. Transfer abroad is subject to Article 9 of Law No. 6698 and must be stated explicitly in the contract.
See also: KVKK (Turkish data protection law), Cloud (SaaS) deployment
- Dispatch note
-
The document issued when goods are shipped, showing what was sent. Its content must match the loading record in the warehouse.
See also: e-Dispatch note, Loading
- e-Dispatch note
-
Issuing and transmitting the dispatch note electronically. Shipment closing must work in step with the e-document flow.
See also: Dispatch note, Loading
- Free zone
-
An area inside the country subject to different customs rules. Warehouse software must track movements inside and outside the zone separately.
See also: Bonded warehouse
- İTS (Pharmaceutical Track and Trace System)
-
Turkey's system for tracking medicinal products via 2D codes and notifications. Receiving, dispatch and returns in the warehouse must match those notifications.
See also: ÜTS (Product Tracking System), DataMatrix / 2D code, Traceability
- KVKK (Turkish data protection law)
-
Law No. 6698 on the Protection of Personal Data. In warehouse software, employee records, customer address data and camera footage fall under it.
See also: Data residency
- Recall
-
Withdrawing a problematic lot from the market. The warehouse must be able to show, within minutes, who received which goods from that lot.
See also: Traceability, Lot / batch
- UDI (unique device identifier)
-
A code carrying a medical device’s product and production identity. Receiving and shipping must run together with ÜTS notification and lot/serial records.
See also: ÜTS (Product Tracking System), Serial number, Aggregation
- ÜTS (Product Tracking System)
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Turkey's registration and tracking system for medical devices and cosmetics. For those product groups, warehouse movements are tied to notifications.
Quality and compliance
- AQL (acceptable quality limit)
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A table stating how many units to sample from a lot and how many defects reject it. Warehouse QC sits on this table between “open everything” and “look at nothing”.
See also: Sampling, Quality control, hold and release
- Certificate of analysis (CoA)
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The supplier’s document of measured lot attributes. If the document and the label (lot, expiry) do not match at receiving, stock stays in quarantine.
See also: Quality control, hold and release, Lot / batch, Quarantine area
- Corrective / preventive action (CAPA)
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Work that closes the cause of a repeating non-conformance and stops it recurring. Without reason codes and repeat counts in the WMS, CAPA becomes guesswork.
See also: Non-conformance record (NCR), Reason code
- Count / book variance
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The gap between system and floor quantity. Inside tolerance it can close; outside it needs a freeze and investigation, with the root cause on a reason code.
See also: Cycle count, Stock adjustment, Location freeze
- Damage code
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A classified cause such as crushed, wet, open carton or broken. A free-text “damaged” leaves insurance and supplier claims without evidence.
See also: OSD (overage / shortage / damage), Reason code, Non-conformance record (NCR)
- Disposition
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Closing blocked goods as accept, conditional accept, return, rework or scrap. Status does not change until the decision is written; the floor pile stays “pending decision”.
See also: Quality control, hold and release, Scrap, Rework
- Good distribution practice (GDP)
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Rules on temperature, hygiene, authority and traceability when storing and distributing medicines. Hold, FEFO and record retention in the WMS are their operational counterparts.
See also: Good manufacturing practice (GMP), Cold chain, İTS (Pharmaceutical Track and Trace System)
- Good manufacturing practice (GMP)
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Rules that protect quality in a production setting. The warehouse is bound to them through raw/finished separation, cleanliness and lot isolation.
See also: Good distribution practice (GDP), Lot / batch
- HACCP
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A method that catches food hazards at critical control points. In the warehouse, temperature, pest, cross-contamination and lot separation are those points.
See also: Cold chain, Good distribution practice (GDP)
- Non-conformance record (NCR)
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A written record that quality or process rules were missed. In the warehouse, damage, wrong labels, temperature excursions or undocumented goods attach to it.
See also: Corrective / preventive action (CAPA), Damage code, Quality control, hold and release
- Poka-yoke (error-proofing)
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Making the wrong action physically or systematically impossible: rejecting a wrong barcode, not opening a door on a weight miss. A warning is not a lock.
See also: Check digit, 5S
- Rework
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Making damaged or faulty goods sellable again through relabel, pack or minor repair. Components and labour are tracked in the WMS as VAS or a production-like order.
See also: Disposition, Value-added services (VAS)
- Sampling
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Inspecting selected units by rule rather than the whole lot. If the sample is not random or risk-based, the check is biased.
See also: AQL (acceptable quality limit), Quality control, hold and release
- Scrap
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Writing unusable stock off the books. Scrap without authority, a reason and, where required, a regulated certificate is both an inventory and an audit gap.
See also: Disposition, Stock adjustment
- Temperature excursion
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Goods leaving the allowed temperature range. Duration and peak value are recorded; stock is not released until quality decides.
See also: Cold chain, Non-conformance record (NCR), Disposition
Security and access
- Audit trail
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An immutable history of who changed which record and when. “We fixed it” is not enough; without a trail the action does not exist in an audit.
See also: Role-based access (RBAC), KVKK (Turkish data protection law)
- Backup
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Taking regular copies of WMS data and actually testing a restore. A backup that is never opened does not exist in a disaster.
See also: Disaster recovery, RPO and RTO
- Chain of custody
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A signed, time-stamped record at every hand-off of high-value or evidential goods. A broken chain produces loss and a dispute over responsibility.
See also: Traceability, Physical access, Seal
- Disaster recovery
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Where and how fast work restarts when the system or site is unusable. If the plan stays on paper, everyone falls back to memory in an outage.
See also: Backup, RPO and RTO, Offline mode
- Dual control
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A critical action that cannot pass without a second user’s approval. Used for high-value goods, scrap, negative stock and bulk adjustments.
See also: Segregation of duties (SoD), Scrap
- Encryption
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Keeping data unreadable in transit and at rest. If RF devices, APIs and backup files are unencrypted, physical theft is also a data leak.
See also: Backup, KVKK (Turkish data protection law)
- Least privilege
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Giving a user only the screens and actions needed to finish the job. Rights opened “in case we need them later” grow the error and abuse surface.
See also: Role-based access (RBAC), Segregation of duties (SoD)
- Multi-factor authentication (MFA)
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A second proof besides the password (app, SMS, key). A password-only admin or remote login leaves warehouse data exposed.
See also: Single sign-on (SSO), Role-based access (RBAC)
- Physical access
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A record of who entered the warehouse, cage, pharma or high-value area and when. If system rights and door rights do not match, control is only half done.
See also: Role-based access (RBAC), Chain of custody
- Role-based access (RBAC)
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Granting rights through a role (receiver, picker, supervisor, quality) rather than one by one. Role bloat is everyone getting every screen.
See also: Segregation of duties (SoD), Least privilege
- Seal
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A single-use mark showing a vehicle, container or cage was not opened. If the number is not written in the WMS or shipment record, the seal is useless.
See also: Loading, Chain of custody
- Segregation of duties (SoD)
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Stopping the same person from both doing and approving a move. If pairs such as adjust+approve or count+close are not split, internal control disappears.
See also: Dual control, Role-based access (RBAC), Stock adjustment
- Single sign-on (SSO)
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Entering the WMS once through the company identity. If a leaver is not cut at the centre, the warehouse account stays open.
See also: Multi-factor authentication (MFA), Role-based access (RBAC)
IT, interfaces and environments
- Change control
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A record, approval and rollback plan for settings, interfaces and versions going live. An uncontrolled Friday-night patch stops Monday receiving.
See also: Sandbox / test environment, UAT (user acceptance testing), Incident record
- Device management (MDM)
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Managing RF devices and tablets remotely with lock, app control and wipe. A lost device without MDM takes a warehouse session outside.
See also: RF operation, Encryption
- Idempotent action
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A second copy of the same request not creating a new movement. Without this rule, network retries and timeouts produce double receipts or double shipments.
See also: API, Message queue
- Incident record
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A log of an outage, data error or security event: time, impact and fix. An unwritten incident makes the same outage feel like the first time, every time.
See also: Change control, SLA (service level agreement)
- Interface monitor
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A screen of stuck, failed or duplicate records in ERP, carrier and notification queues. Without it, integration looks “up” while orders drop silently.
See also: API, Message queue, Exception queue
- Label template
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The definition of barcode, text and logo fields per carrier or customer format. If the template is not separated from the data source, every new carrier needs code.
See also: Printer routing, Carrier integration
- Latency
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The time between a scan and the system reply. High latency makes the operator press again and creates a double posting.
See also: RF operation, Offline mode
- Master-data governance
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Who owns SKU, barcode, unit and customer records, where they are born and who may change them. Dirty master data makes a correct WMS run incorrectly.
See also: Master data, SKU (stock keeping unit)
- Message queue
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A buffer that sequences events between systems and allows retries. Without a queue, a short outage becomes lost orders and movements.
See also: Webhook, Idempotent action, Interface monitor
- OAuth / authorised API
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Systems talking with a scoped, time-limited token instead of a shared password. A shared “admin” password makes it impossible to know who did what.
See also: API, Audit trail
- Printer routing
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Which station printer receives a label or document. The wrong printer puts a label at the wrong door and mixes shipments.
See also: Label template, Pack station
- RPO and RTO
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RPO: the most data that may be lost in an outage. RTO: how fast the system must be back. Without both written down, “we have a backup” is unmeasured.
See also: Backup, Disaster recovery
- Sandbox / test environment
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A copy used to try integrations and processes without touching live stock. A “let me just try it” on production dirties orders and inventory.
See also: UAT (user acceptance testing), Change control
Logistics and supply chain
- 4PL (fourth-party logistics)
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A layer that designs and manages several 3PLs, carriers and warehouses on your behalf. Software and contract orchestration are separate from the 3PL’s execution.
See also: 3PL (Third-party logistics), TMS (Transportation Management System)
- 5S
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Sort, set in order, shine, standardise, sustain. In the warehouse it is the lean counterpart of location labels, empty-pallet and aisle discipline; software does not do 5S by itself.
See also: Location, Poka-yoke (error-proofing)
- Backorder
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An order line left open because stock was short. The WMS can release it when goods arrive; without a written customer promise it piles up silently.
See also: Partial delivery, Stockout, ATP (available to promise)
- Bill of lading (B/L)
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The carrier’s receipt for goods, and in most sea freight a document of title. In bonded and port warehouses the B/L line is tied to stock.
See also: Incoterms, Bonded warehouse, Packing list
- Consignment stock
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Goods sitting in your warehouse while title stays with the supplier. They are invoiced when used; if the WMS mixes status and owner, financial stock drifts.
See also: VMI (vendor-managed inventory), Stock status
- Consolidation
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Combining several small shipments into one load. In the warehouse it is gathering orders for the same vehicle in staging; the risk is mixed labels and doors.
See also: Deconsolidation, Staging, Milk-run
- Dark store
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A store format closed to walk-in customers, used only for pick and delivery. The WMS or store system must not mix display stock with pick stock.
See also: Micro-fulfilment, Ship-from-store
- Dead stock
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Stock that has not moved for a long time, cannot be sold or has expired. It occupies space; if slotting and count frequency do not expose it, the cost stays hidden.
See also: Inventory turnover, Expiry date, ABC analysis
- Deconsolidation
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Breaking one inbound load into consignee, order or channel piles. It is the first step in a cross-dock or transshipment warehouse; a wrong split seeds every later error.
See also: Consolidation, Cross-docking
- Distribution centre (DC)
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A regional warehouse that holds stock and fulfils orders. A fulfilment centre leans e-commerce piece-pick; a classic DC leans pallet and store replenishment.
See also: Fulfilment centre, Hub-and-spoke
- Dropshipping
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The order going from supplier to customer without entering your warehouse. Even if the WMS is out of that flow, returns and complaints land on your record; the channel rule must be written.
See also: Omnichannel fulfilment, Returns management
- EOQ (economic order quantity)
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The classic order size that balances ordering cost against holding cost. Warehouse capacity and expiry sit on top of the formula as real constraints.
See also: Inventory carrying cost, Reorder point
- Fill rate
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The share of orders or lines fulfilled from on-hand stock at the first attempt. A low rate is a safety-stock or allocation issue; warehouse accuracy is measured separately.
See also: OTIF (on time in full), Stockout, Perfect order
- Fulfilment centre
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A warehouse that picks piece and carton orders and hands them to a carrier. Dense SKUs, short cut-offs and a returns area set it apart from a classic DC.
See also: Distribution centre (DC), Omnichannel fulfilment, Micro-fulfilment
- Green logistics
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Delivering the same service with less packaging, empty kilometres and energy. Cartonization and full-vehicle rules in the WMS attach to it; claims are not written without a measure.
See also: Cartonization, Cube utilisation
- HS / customs tariff code
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The worldwide classification number for goods. A wrong code ties bonded stock and duty to the wrong item.
See also: Customs declaration, Bonded warehouse
- Hub-and-spoke
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A network where a central warehouse (hub) feeds satellite sites (spoke). If transfer stock and STO discipline break, satellites either swell or stock out.
See also: Stock transfer order (STO), Distribution centre (DC)
- Incoterms
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The international definition of where delivery, freight and damage risk sit (FOB, CIF, DAP, DDP and others). The warehouse reads from it when goods become “your stock”.
See also: Landed cost, Bill of lading (B/L)
- Inventory carrying cost
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The annual cost stock attracts: capital, space, insurance, shrink and obsolescence. Assuming “the warehouse is free” hides excess stock.
See also: EOQ (economic order quantity), Dead stock, TCO (total cost of ownership)
- Inventory turnover
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How many times stock is sold and replaced in a period. A slow warehouse that slots fast movers badly adds walking; low turnover flags dead stock.
See also: Dead stock, ABC analysis, Slotting
- Landed cost
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Unit cost to the warehouse door: goods, freight, insurance, duty and handling. If putaway and pricing look only at purchase price, true margin is hidden.
See also: Incoterms, TCO (total cost of ownership)
- Last mile
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The leg from the distribution centre to the door. Warehouse cut-off and label accuracy are common causes of delay on this leg.
See also: Cut-off time, Carrier integration
- Lead time
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The time from placing an order to stock arriving or leaving to the customer. In-warehouse dock-to-stock is the visible part of that span.
See also: Dock-to-stock time, Safety stock
- Micro-fulfilment
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A small automated or semi-automated stock area in the city for short delivery. Capacity is limited; stock sharing with the main DC must be a written rule.
See also: Fulfilment centre, Dark store
- Milk-run
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One vehicle calling at several suppliers or customers in sequence. If receiving and dispatch appointments are not tied to that loop, a dock queue forms.
See also: Dock scheduling, Consolidation
- Packing list
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The case, pallet and line breakdown of a shipment. Without an ASN, receiving is counted against this list.
See also: ASN (Advance shipping notice), Bill of lading (B/L)
- Pipeline stock
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Goods ordered but not yet in the warehouse, or sitting between sites. It is not ATP; until the STO or ASN closes it is often mistaken for on-hand.
See also: Stock transfer order (STO), ASN (Advance shipping notice), ATP (available to promise)
- Postponement
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Holding final form, label or pack until demand is known. In the warehouse it appears as kitting and VAS; master stock stays generic.
See also: Kitting, Value-added services (VAS)
- Reorder point
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The threshold that triggers replenishment when stock falls below it. It is set from safety stock and lead time; the warehouse only sees the drop.
See also: Safety stock, Lead time, EOQ (economic order quantity)
- Safety stock
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A buffer held against demand or supply variance. It occupies warehouse space; planning calculates it, the WMS shows what is actually on hand.
See also: Reorder point, Stockout, Lead time
- Ship-from-store
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The order leaving from store stock instead of the warehouse. Store counts and reservations are often weaker than the WMS; promises should be more cautious.
See also: Omnichannel fulfilment, Dark store
- Stockout
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Sellable stock running out while demand remains. The cause may be planning, supply or a warehouse record; the WMS only shows “not in the location”.
See also: Fill rate, Safety stock, Negative stock
- Supply chain
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The network of supply, production, warehouse and distribution from raw material to customer. The WMS is the warehouse node; the chain takes its stock truth from there.
See also: WMS (Warehouse Management System), 4PL (fourth-party logistics)
- VMI (vendor-managed inventory)
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The supplier watching stock in your warehouse and replenishing it themselves. In the WMS, owner and physical place are split; when it invoices is a separate rule.
See also: Consignment stock, Multi-client warehouse
- Warehouse layout
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Placing receiving, reserve, pick, pack and shipping areas with circulation in mind. Software does not fix a bad layout; walking and crossing flows are born in the plan.
See also: Slotting, Very narrow aisle (VNA)
- XYZ analysis
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Classifying items by demand predictability: X regular, Z irregular. Together with ABC it drives slotting and safety stock.
See also: ABC analysis, Safety stock
Related pages
Operational guidesWMS directoryWMS finderSelection toolkit
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