SAP Message UGMD071 - Value &2 for characteristic &1 is invalid; only capital letters allowed

Diagnosis The value &V2& is invalid for characteristic &V1&. System Response You cannot save the characteristic without changing the value. Procedure Do not enter lower-case letters. The characteristic is also saved in BW. There you can specify that nolower-case letters are permitted by running transaction RSKC (MaintainPermitted Characters) and entering the constant ALL_CAPITAL.