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PyRFC failing in server example server_app_thread.py #368

@Vartu

Description

@Vartu

Describe the bug
Running function module STFC_STRUCTURE from SAP using RFC to PyRFC-based server ends with exception "SYSTEM_FAILURE" and kills the running PyRFC server. I used the example script server_app_thread.py for testing.

To Reproduce
Run python script server_app_thread.py with fitting sapnwrfc.ini configuration. On the connected SAP system run function module STFC_STRUCTURE with empty fields with RFC target being the registered program RFC created by the Python script.

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image
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Environment

  • OS: Windows Server 2022 Datacenter
  • Running in docker? No.
  • PyRFC version: 3.3.1
  • NW RFC SDK version: 7.50.13
  • Python version: 3.12.3

Additional context
The SAP system is S/4HANA 2022.

Here's the relevant traces:
pyrfc_failure_traces.zip

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