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2820211 - Call SAP GUI for Windows failed from SAP BC

Symptom

There are 3 symptoms for this scenario:

  • Got MESSAGE_TYPE_X dump

    Category ABAP Programming Error
    Runtime Errors MESSAGE_TYPE_X
    ABAP Program CL_GUI_CFW====================CP
    Application Component BC-FES-GUI

    |Information on where terminated |
    | The termination occurred in ABAP program or include |
    | "CL_GUI_CFW====================CP", in "FLUSH". The |
    | main program was "SAPMSSY4".

  • Got blank screen.
    4.png
  • Got "All sessions are lost" error.
    5.png

Also from the SAP GUI trace, you may see below error log information.
---
Error: Unknown exception while accessing value for FLPVersion in property cache
---



Environment

SAP Business Client 6.5
SAP Business Client 7.0
SAP GUI for Windows 7.50
SAP GUI for Windows 7.60

Keywords

MESSAGE_TYPE_X; dump; hanging; blank; launch; 520688; SAP GUI has closed the communication channel; All sessions are lost; NWBC; SAP Business Client; CL_GUI_CFW; , KBA , BC-FES-GUI , SAP GUI for Windows , BC-FES-BUS , Netweaver Business Client , Problem

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