Diagnosis
In SAP APO a purchase requisition with conversion indicator was changedor deleted (method &V4&). In the ERP system, the corresponding purchaserequisition has, however, already been converted to purchase order &V1&item &V2& schedule line &V3&.

System Response
The system has ignored the event because otherwise the purchase orderV1 item v2 schedule line v3 would be changed or deleted in the erpsystem and this is not wanted.
For this reason, purchase orders that already exist in the ERP systemmay not, in principle, be changed or deleted.

Procedure
Use the CIF comparison/reconciliation of transaction data in SAP APO toremove the data inconsistency between SAP APO (converted purchaserequisition) and the ERP system (purchase order).