SAP Message VW645 - & entries could not be added due to previous deleted entries

Diagnosis
You have tried to use the function 'Add additional combinations' to addentries automatically to the table but these entries do not exist. Thesystem has determined that new entries exist in the working memory withthe same key as previously deleted entries.

System Response
The system could not enter new entries for the entries with the samekey as deleted entries in the working memory.

Procedure
If you want to enter all the missing combinations, save your datafirst. This will clear the working memory of any deleted entries. Thenchoose the 'Add additional combinations' function again.