SAP Knowledge Base Article - Preview

2974003 - Error displayed when adding a system using logon group in the SAP GUI logon after changing the message server port number


Add a system in the SAP GUI, select 'Group/Server Selection'. After input SID, message server IP address (without port number), no logon group can be selected in 'Group/Server' field and error displayed.


Another symptom is if the system was already added in SAP GUI and the Message Server port number was changed later, then trying to logon to the system raises the message "Error: internal error (this retcode should be handled by caller of MS-layer)" in SAP GUI.

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



  • SAP GUI for Windows release independent


SAP NetWeaver all versions


Add system, message server port , KBA , BC-FES-GUI , SAP GUI for Windows , BC-CST , Client/Server Technology , Problem

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