Solution : https://service.sap.com/sap/support/notes/410704 (SAP Service marketplace login required)
Key words :
characteristics message cl056 occurs stating, internal error occurred, ksml-omerk entry, terms overwriting reason, ksml-omerk, table cabn, characteristic number, program deletes, overwriting, prerequisites
Related Notes :
| 522009 | BatchInput overwriting: Internal error CL056 |
| 442386 | Overwriting: changes not saved |
| 426157 | Overwrite: Not saved |