2732132 - WDA: Cannot be processed in plugin mode http

When executing a Web Dynpro ABAP application, "500 Internal Server Error" is shown in the browser.
In transaction ST11 in the dev_icf trace one of the following error messages can be found:

• Message E webdynpro_RT 023 cannot be processed in plugin mode
• Message E webdynpro_RT 031 cannot be processed in plugin mode

If RZ11 parameter is/HTTP/show_detailed_errors is set to true according to SAP Help Page Managing Error Information, the screen below is shown:

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

• Web Dynpro ABAP
• SAP NetWeaver
• SAP NetWeaver Application Server for SAP S/4HANA
• ABAP PLATFORM - Application Server ABAP 

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