2654901 - MRP Creates Purchase Proposals with Wrong lot-sizing Method

For example, you expect that system would create one single supply for the demands within month while running Material Requirement Planning (MRP) for Product ABC (ABC stands for production ID) with Production Specification DEF (DEF stands for production specification ID). Then you maintain the planning procedure as "demand - driven", the lot-sizing method as "periodic lot-size" and period type as "month" in the Product Master Data.

However, system creates proposals for each demand, instead of creates as per your setting.

SAP Business ByDesign

1. Go to Supply Planning Work Center.
2. Navigate to Products View.
3. Search for Product ABC with Production Specification DEF.
4. Click Open.
5. Click Run Planning - Single BoM level, then system would create proposals for each demand.

For Products with Production Specification, the lot sizing method "Lot-for-Lot" is automatically applied, other methods would be ignored.

This is standard system behavior.

Help Portal: Material Planning Settings

MRP, lot-sizing method, Proposals, Production Specification, Lot for Lot. , KBA , AP-SDM , Supply and Demand Matching , How To