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SAP Knowledge Base Article - PreviewSymptom
When trying to make "incompatible change" (such as changing class attributes, deleting methods, even deleting the whole class) in SE24,error message OO401 "You cannot perform this action in modification/enhancement mode" occurs.
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Environment
NetWeaver ABAP based systems
Keywords
OO401, You cannot perform this action in modification/enhancement mode, SE24, incompatible change , KBA , BC-DWB-TOO-CLA , Class Builder , BC-DWB-CEX , Customer Extensions , How To
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