How To Fix WPRO_XI_PROXY002 - Postprocessing &2, service &1: Registration to FEH failed

SAP Error Message - Details

• Message type: E = Error

• Message class: WPRO_XI_PROXY - Messages Service Processing Retail Event

• Message number: 002

• Message text: Postprocessing &2, service &1: Registration to FEH failed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WPRO_XI_PROXY002 - Postprocessing &2, service &1: Registration to FEH failed ?

  The SAP error message:
  WPRO_XI_PROXY002 Postprocessing &2, service &1: Registration to FEH failed
  typically occurs in the context of SAP PI/PO (Process Integration / Process Orchestration) or SAP XI (Exchange Infrastructure) when a proxy or service is trying to register or communicate with the FEH (Forwarding Engine Handler) but fails.
  
  Explanation of the Error
  
  WPRO_XI_PROXY002: This is an error related to the proxy runtime (WPRO) in SAP XI/PI.
  Postprocessing &2, service &1: Indicates the postprocessing step and the specific service involved.
  Registration to FEH failed: The proxy runtime is unable to register the service or message processing with the Forwarding Engine Handler (FEH).
  
  The FEH is a component in the SAP XI/PI runtime that handles message forwarding and processing. If registration to FEH fails, the message processing cannot proceed correctly.
  
  Common Causes
  
  
  FEH Service Not Running or Unavailable
  The FEH service on the Integration Engine (or the relevant server) is not running or is unreachable.
  
  
  Network or Communication Issues
  Network problems between