SAP APO Interface for Transferring Requirement Data

To be able to calculate parameters such as the maximum quantity in the storage type, slotting needs requirement data for the relevant product. This requirement data can come from SAP Advanced Planning and Optimization (SAP APO). Extended Warehouse Management (EWM) stores this information locally in the product master (on the Slotting tab page, Requirement/Demand Data area ).

You can also fill these local attributes in EWM with data from other sources. To do this, you have several processing options in the product master, for example, manual input or mass maintenance.

SAP APO and EWM manage requirement data at different organizational levels. SAP APO performs planning processes for locations of the type Plant . EWM stores requirement data at warehouse number level. Slotting assumes that a 1:1 relationship exists between the SAP APO location and the EWM warehouse number. If the relationship is not 1:1, you can use Business Add-Ins (BAdIs) for the conversion.

In most cases, SAP APO and EWM run on different systems. The calling EWM system needs information about the SAP APO instance such as:

Logical system
Time interval for which the system is to read requirement data
Information as to whether the data is forecast data or historical data

You define this information in Customizing for EWM. For more information, see the Implementation Guide (IMG) under Start of the navigation path Goods Receipt Process Next navigation step Slotting General Settings Change Information for APO Instances. End of the navigation path

If you have set the following indicators on the selection screen for slotting, the system reads the requirement data from SAP APO when performing slotting:

Update Requirement Quantity
Update Number of Order Items
Update Recommended Storage Qty

You can also read the requirement data as a separate process.