What Is Wave Picking?
Also known as: wave release, batch picking, pick waves
Definition
Wave picking is a method where a warehouse releases orders to the floor in timed groups, called waves, chosen by carrier cut-off, priority, zone or order type. It lets planners balance workload across pickers and the dock.
Wave Picking Explained
Instead of releasing each order the moment it arrives, the system groups orders into waves. A wave might be all orders for one carrier pickup, all rush orders, or all lines in a single zone. Release generates pick tasks, reserves stock and sets the sequence.
Wave picking is related to but distinct from batch picking (one picker collects several orders at once) and zone picking (pickers stay in an area and pass totes along). Real warehouses combine them.
Infor LN warehouse outbound orders can be released in sets, and NetSuite WMS offers wave creation by filters. SyteLine users typically rely on pick lists and shipping schedules, with mobile or add-on tools covering wave logic. Whatever the tool, waves are driven by order cut-off times and available labour.
The trade-off is rigidity. Waves smooth workload and make carrier cut-offs predictable, but a late rush order can miss the wave and force a manual exception.
Why It Matters
- Planned waves reduce idle time and pile-ups at packing stations.
- Aligning waves with carrier cut-offs improves on-time shipping.
- Grouping lines by zone or SKU cuts picker travel.
- Waves give supervisors a clear unit to monitor and re-prioritize.
In Practice
A distributor has carrier pickups at 15:00 and 17:30. It releases wave 1 at 12:00 for the first carrier and wave 2 at 14:00 for the second. Lines for the same aisle are batched in each wave, and a rush order entered at 14:10 is hand-added to wave 2 by the supervisor.
Frequently Asked Questions
What is the difference between wave and batch picking?
Wave picking is about when orders are released. Batch picking is about how a picker collects several orders in one trip. They are often combined.
When is wave picking a bad fit?
When orders are few, highly urgent and arrive continuously. Continuous or discrete picking may work better there.
Does ERP support wave picking natively?
Some modules do, others need a WMS add-on. Check whether wave release, task generation and mobile confirmation are in your edition.
Related Terms
Warehouse Management System (WMS)
A warehouse management system (WMS) is software that directs and records warehouse work at bin level: receiving, put-away, replenishment, picking, packing and shipping. It tells operators where to go and what to scan, and posts the resulting stock movements to the ERP.
Put-Away
Put-away is the warehouse step that moves received goods from the receiving dock to a storage location and records that location in the system. Directed put-away uses rules to choose the best bin.
Pick, Pack and Ship
Pick, pack and ship is the three-stage order fulfillment sequence: pull items from stock against a sales order, pack them with documents and labels, then hand them to a carrier. Each stage posts a transaction in the ERP.
Lead Time
Lead time is the elapsed time between initiating an order and having the material available for use. In ERP it is the offset MRP applies when back-scheduling a planned order from its due date to its release date.
Warehouse Order
A warehouse order is the execution document in Infor LN Warehousing that carries out an inbound, outbound or transfer movement. It is generated from an originating order such as a sales, purchase, production or transfer order, and its order type defines the procedure steps.
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SAP EWM Wave Release Sizing Calculator
Decide how many waves per day to release, how big each should be and how many pickers you need to complete a wave inside its window.
Keep exploring
Free tools
- SAP EWM Wave Release Sizing CalculatorDecide how many waves per day to release, how big each should be and how many pickers you need to complete a wave inside its window.
- SAP EWM Wave Management ChecklistA checklist to design, run and review wave management in SAP EWM, from wave templates to release and closing.
- Infor LN Multi-Site Rollout PlannerModel your Infor LN global rollout: enter sites, wave size, and complexity to get wave count, total timeline, program cost, and cost per site.
ERP fixes and how-tos
- Pick Line vs Wave Line in Infor M3Pick line versus wave line in Infor M3: what each represents in warehouse picking, how waves group work, and how to decide which applies in your setup.
- Dynamics 365 Supply Chain Wave Planning and Inventory JournalsHow wave planning and inventory journals work in Dynamics 365 Supply Chain Management: wave templates, wave steps, work templates, journal names and posting.
- D365 Warehouse Wave Runs but No Work Is CreatedA wave runs but no work lines appear in Dynamics 365 warehouse management. Check wave templates, work templates, location directives and inventory reservations.
Guides
- SyteLine WMS Limitations and Practical WorkaroundsAddress SyteLine warehouse management limitations. Practical workarounds for bin management, wave picking, cycle counting, and RF scanning gaps.
- SyteLine Pick Pack Ship Configuration GuideConfigure the pick, pack, and ship workflow in Infor SyteLine including wave planning, packing stations, shipping integration, and BOL document generation.
- Infor M3 Warehouse Management: Setup and Daily FlowHow the Infor M3 warehouse management system works: warehouses, locations, balance IDs, picking, replenishment and cycle counts. A practical setup guide.