3668560 - error "message E f5 165 cannot be processed in plugin mode https" when testing API "journal entry - post (synchronous)" in sap S/4hana cloud public edition

• An error occurs when testing the API 'Journal Entry - Post (Synchronous)'
• Error message noted: "Message E F5 165 cannot be processed in plugin mode HTTPS."
• SOAP error log indicates: "Message E F5 165 cannot be processed in plugin mode HTTPS."

SAP S/4HANA Cloud Public Edition

1. Run API test with "Journal Entry - Post (Synchronous)."
2. Use required payload. 
3. Observe the error in the SOAP error log: "Message E F5 165 cannot be processed in plugin mode HTTPS."

• The error "F5 165" corresponds to the text "Create company code & or change your entry". 
• The company code in the payload does not exist in the system

1. Verify whether the company code referenced in the payload exists or not in the S4hana public cloud system. 
2. If the company code value in the payload is not correct, please amend the payload with the correct company code value. 
3. Re-run the API test with the corrected payload.

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