SAP Knowledge Base Article - Preview

2629624 - Error OO401 "You cannot perform this action in modification/enhancement mode" occurs in SE24

Symptom

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.

 OO401.PNG

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.


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Environment

NetWeaver ABAP based systems

Product

SAP NetWeaver all versions ; SAP S/4HANA all versions

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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