3328693 - Error "Cannot switch DBMS user assignment; delete, save, and reassign to change" when changing DBMS user assignment on the DBMS tab in SU01

Symptom

When changing an already maintained DBMS user assignment on the DBMS tab in SU01 for a user and clicking on 'Save', the following error occurs:

Cannot switch DBMS user assignment; delete, save, and reassign to change

Environment

SAP NetWeaver 7.5
SAP BW/4 HANA 1.0, 2.0, 2021

Keywords

"Cannot switch DBMS user" "Cannot switch DBMS user assignment" "DBMS user change" "SU01" "DBMS" , KBA , BC-SEC-USR-ADM , Users and Authorization administration , BW4-ME-HMOD-AUT , BW2HANA authorization generation , BW-WHM-MTD-HMOD-AUT , BW2HANA authorization generation , Problem

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