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3571877 - Intermittent connection issues when using OAuth2 Authentication for integrations relying on CL_HTTP_CLIENT

Symptom

Sporadic connection issues are experienced when using RFC connections with OAuth2 authentication.

Integrations that rely on them may present a message or HTTP return code similar to the following:

  • "HTTP client could not be created"
  • 401 Unauthorized

This may also occur if a proxy has been configured in the RFC / OAuth2 Client.


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Environment

SAP NetWeaver Application Server for SAP S/4HANA

Product

SAP S/4HANA Cloud Private Edition all versions ; SAP S/4HANA all versions

Keywords

Sporadic, Connection Issues, Integration Suite, Test Tenant, RFC Destination, CPI_PROXY_ASYNC, Error Message, Exception 99, OAuth 2.0, ABAP. OA2C_CONFIG, OA2C_CLIENT, CL_OA2C_CLIENT, CL_HTTP_CLIENT, RFC, ERROR 99, HTTP_CLIENT, HTTP client could not be created, CPI, integrations, RFCs, inconsistency, intermittency , KBA , BC-SEC-LGN-OA2 , OAuth 2.0 for ABAP , BC-MID-RFC , RFC , BC-MID-ICF , Internet Communication Framework , BC-MID-ICF-LGN , ICF System Login , Problem

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