Goods Issue in a Decentralized Warehouse 

Purpose

The variant for the SAP System as an enterprise resource planning (ERP) system and as a Warehouse Management (WM) system describes the link-up of an external warehouse management system to an SAP System. The stand-alone system that executes all warehouse management functions is an SAP System.

While processes in accounting, purchasing, inventory management or sales run in the central ERP system, the actual physical processing of the putaway takes placed in the decentralized Warehouse Management system (WMS).

Prerequisites

Due to the separation of the functions involved, you must first split the master and movement data (for more information, refer to the section Setting up the Decentralized Warehouse Management System). Information on the evaluation of materials is not relevant in the decentralized WMS. The basic data of a material must be identical in both systems. The warehouse management-specific material data is only of relevance in the decentralized WMS. The distribution of material master data between the central ERP and the decentralized WMS takes place via an output type that only contains fields relevant for WMS (output type MATMAS_WMS). The movement data must be available in both systems.

Process Flow

Process for goods issues based on deliveries:

  1. In the ERP system, create a sales order.
  2. In the ERP system, the system creates a delivery from the sales order.
  3. The delivery is distributed to the WMS using the BAPI OutboundDelivery.SaveReplica' and there it represents a request to the warehouse to pick goods.
  4. In the decentralized system, a transfer order is created for the outbound delivery.
  5. Execute the picking in the warehouse.
  6. Confirm the transfer order and, if required, print the delivery documents.
  7. After the transfer order is confirmed, the goods issue is posted for the outbound delivery. This clears the interim storage bin.
  8. This activity initiates the confirmation to the ERP system through the BAPI OutboundDelivery.ConfirmDecentral. Among other things, the pick quantities are passed on to the delivery in the ERP system. Note that no quantity checks with respect to over- or underdelivery take place in the decentralized WMS.
  9. The goods issue posting for the outbound delivery is automatically posted in the ERP system (in inventory management) when the verification is recorded.