Solution : https://service.sap.com/sap/support/notes/658163 (SAP Service marketplace login required)
Summary :
In an SAP environment, modifying an account assignment element (like in purchase orders or FI documents) that has previously derived an FM account assignment does not automatically trigger a re-derivation. This occurs because the system treats the existing FM account assignment as manually entered, unable to distinguish its origin. For resolution, users can remove the existing FM account assignment before updating the account element, enforce definite assignment in the FM account derivation customizing, or use enhancement SAPLFMCH001 to verify account assignments. Additionally, warning messages can be configured to alert users to potential mismatches in account assignments.
Key words :
initially derived fm account assignment stays, fm account assignment derivation runs, changed account assignment object, existing fm account assignment, fm account assignment existing, fm account assignment derivation, changed account assignment element, manually entered account assignment, derived account assignment, fm account assignment
Related Notes :
| 1268001 | FI313 - No funds center entered/derived in item &. |