SAP Knowledge Base Article - Preview

3169247 - "No OAuth 2.0 client authentication credentials included or used authentication method is unsupported" error when terminating the access token request in plain HTTP

Symptom

While making use of an OAuth-based access token request on the NetWeaver AS ABAP environment, a manual user name and password prompt occurs as the below error message is recorded:

"OAUTH2: Error! CX_OAUTH2_EXCEPTION thrown, time: ...

OAUTH2: Error Text: No OAuth 2.0 client authentication credentials included or used authentication method is unsupported"


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Environment

  • NetWeaver AS ABAP.
  • Proxy, load balancer or web dispatcher may be intermediating the connection.

Product

SAP NetWeaver all versions

Keywords

OAuth, HTTP, HTTPS, invalid_request, OAUTH2, authentication, credentials, method, unsupported , KBA , BC-SEC-LGN-OA2 , OAuth 2.0 for ABAP , Problem

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