What to check
An entry-already-exists message normally calls for checking the intended key and operation. If a new key also fails, especially after migration or an upgrade, preserve that evidence. Do not assume that a table or numbering record should be edited manually.
Troubleshooting steps
- Record the full error, object type, submitted key, and whether the integration intended to add or update a record.
- Check for an existing record through the supported SAP interface and test a genuinely unused key in an isolated test company.
- If the default SAP form reproduces an unexpected failure, give your SAP partner the reproduction and recent migration history.
Confirm the result
Confirm that the corrected operation creates or updates exactly one intended record. Leave integrity repair and system-table changes to SAP-supported procedures.