Stock Removal (using Wave Release) via Pick Point from Automated Warehouse (3rd Party) using IDOC.

Scenario:

•In an SAP EWM scenario, stock removal via pick point involves retrieving goods from a fully automated warehouse system operated by a third-party provider.

•The stock removal process is initiated using a wave picking strategy, where multiple warehouse tasks are consolidated into a single wave.

•Interface communication between SAP EWM and the third-party warehouse management system is managed through IDocs.

•IDocs facilitate the exchange of key data such as warehouse tasks, task confirmations, and stock movements between both systems.

Process Flow: Stock Remove via Pick point using Wave picking from Fully Automated WH

  1. Stock Removal or Picking Initiation: In SAP EWM, stock removal or picking is triggered, typically by consolidating multiple outbound deliveries into a single collective action. This is often done to streamline the picking process and improve efficiency by processing several deliveries at once.
  2. Warehouse Task Creation: Upon triggering the picking process, EWM automatically generates warehouse tasks (WTs) for each outbound delivery.
  3. Warehouse Task Transfer to Non-SAP System: EWM then transfer these warehouse tasks to the external non-SAP system using a IDOC message type, /SCWM/WMTORD. This communication ensures that the non-SAP system is aware of the required tasks for picking and can process them accordingly.
  4. Wave Creation in the Non-SAP System: The non-SAP system, however, can only group these WTs into a picking wave once it receives confirmation of the wave release from EWM. EWM communicates this wave release using the message type /SCWM/WMRREF.
  5. Processing of Pick Order by the External System: After receiving the transferred WTs, the external system processes the pick order. This order may contain one or multiple WTs, depending on the requirements of the outbound deliveries.
  6. Optimizing Stock Movements: The non-SAP system optimizes the physical movement of stock by determining the sequence in which handling units (HUs) should be removed from storage. This ensures that the picking process is carried out efficiently and in the correct order.
  7. Execution of Picking: At the designated pick point, the non-SAP system provides a visual display of the items to be picked, allowing warehouse staff to execute the picking process in real time.
  8. Confirmation of Picking to EWM: Once the picking process is complete, the non-SAP system confirms the execution of the picking for the specific handling units back to EWM. This is done using the message type /SCWM/WMTOCO, which allows EWM to track the progress of the pick and update its records accordingly.

Process Flow: Return Transfer of Handling Units with Remaining Quantities

  1. Return of Handling Units to the Warehouse: After the picking process, any handling units (HUs) with remaining quantities are transported back from an identification (ID) point to original destination bin in warehouse.
  2. Execution of Putaway: The non-SAP system physically moves the HUs to their assigned destination storage bins and completes the putaway process.
  3. Reporting of Stock Movement to EWM: Once the HUs are put away, the non-SAP system reports the execution of the stock movement back to EWM using the message type /SCWM/WMSUMO. This message ensures that EWM is updated with the final location and status of the handling units.
  4. Creation of Warehouse Task for Putaway in EWM: EWM then uses the data provided by the non-SAP system through the /SCWM/WMSUMO message to create a new warehouse task for the putaway process. This ensures that the stock movement is properly recorded and posted in the system, completing the return transfer of the HUs in EWM system.

IDOC for Wave release information to 3rd party

•The System sends the Wave number to NON –SAP system using the IDOC /SCWM/WMTORD under the segment /SCWM/E1LT0RHI.

•The IDOC /SCWM/WMRRID01 is used to trigger the stock movement by releasing the wave. The wave is used to group together the Warehouse tsk to perform the good movement in one step. This is only for 3rd party by using release wave IDOC.

•For Outbound picking use the message type – /SCWM/WMRREF. The IDoc /SCWM/WMRRID01 is utilized to release transfer orders associated with a wave pick that have been previously transmitted to an external non-SAP system.

IDOC for Stock movement with HU

• IDoc /SCWM/WMSUID01 is used to report the movement of handling units (HUs), such as stock transfers, from a non-SAP system to SAP Extended Warehouse Management (EWM).

•When a stock transfer of handling units (HUs) is initiated in the non-SAP system, or if Non –SAP system perfume the movement of HU to final destination bin like in our example the HU with the remaining quantity will be moved back from PICK- POINT to HIGH RACK. In such cases the Non –SAP system will communicate the HU stock movement information back to EWM.

• Once the HU information (via IDOC) sends back to EWM system form 3rd party, the EWM subsequently perform the stock movement of reported HU in system to adjust the stock.

• Message type /SCWMWMSUMO using segment /SCWM/E1LSUMX

IDOC Interface Message type information for EWM 

Warehouse task confirmation

ProcessWarehouse task creation from EWM to 3rd party
Message type/SCWM/WMTOCO
IDOC/SCWM/WMTCID01
Header segment/SCWM/E1LTCOH  Segment –  /SCWM/E1LTCOH001
Item segment/SCWM/E1LTCOI    Segment –  /SCWM/E1LTCOI001
Exception /SCWM/E1LEXCP   Segment –  /SCWM/E1LCOHU00
Confirm Entire Hu/SCWM/E1LTCOX    Segment -/SCWM/E1LEXCP000
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Warehouse task creation

ProcessWarehouse task confirmation from EWM – 3rd party
Message type/SCWM/WMTORD
IDOC/SCWM//SCWM/WMTOID01
Header segment/SCWM/E1LTORH  Segment –  /SCWM/E1LTORH001
Item segment/SCWM/E1LTORI    Segment – /SCWM/E1LTORI001
Pick HU/SCWM/E1LPHUX    Segment – /SCWM/E1LPHUX001
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IDOC Interface Configuration settings in EWM system to activate WCU Interface.

SAP EWM’s integration with third-party automated warehouse systems streamlines stock removal through efficient wave picking strategies. By leveraging IDocs for seamless communication, businesses can ensure accurate and real-time data exchange between SAP EWM and external systems, optimizing warehouse tasks, confirmations, and stock movements for improved operational efficiency. At SCM-Cloudbook, the esteemed SAP education center in Pune, get ready for an exhilarating journey of learning SAP. We take immense pride in our reputation as one of the best in the industry. Our exceptional SAP courses will equip you with the knowledge and skills to excel in this field.

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