SAP Knowledge Base Article - Preview

1949511 - Federated PI Acknowledgements - Unauthorized HTTP 401


Logon credentials from an external Process Integration (PI) system (i.e., system out-with the system landscape) are used to logon to a PI system, on the backward journey, for acknowledgements in a federated PI system landscape resulting in unauthorised logon errors, e.g.,

Authorization error while sending by HTTP (error code: 401 error text: Unauthorized) 



  • PI Release Independent
  • SAP NetWeaver
  • SAP Process Integration


SAP NetWeaver all versions ; SAP Process Integration all versions


backward journey, acknowledgement, transfer hoplist , KBA , BC-XI-IS , Integration Server , Problem

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