How To Fix WPRO_XI_PROXY008 - Postprocessing &2, service &1 failed

SAP Error Message - Details

• Message type: E = Error

• Message class: WPRO_XI_PROXY - Messages Service Processing Retail Event

• Message number: 008

• Message text: Postprocessing &2, service &1 failed

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WPRO_XI_PROXY008 - Postprocessing &2, service &1 failed ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WPRO_XI_PROXY008 Postprocessing &2, service &1 failed
  
  Meaning / Cause:
  This error occurs in the context of SAP Process Integration (PI) or SAP Process Orchestration (PO) when a proxy communication fails during the postprocessing phase. Specifically:
  
  &1 represents the service name (proxy service or interface).
  &2 represents the postprocessing step or component (e.g., XI Adapter, SOAP Adapter, etc.).
  
  The error indicates that the postprocessing of a message for the specified service failed. This usually happens when the system tries to process the response or outbound message after the initial processing, and something goes wrong.
  Common causes include:
  
  Network or connectivity issues between SAP systems or between SAP and external systems.
  Incorrect or missing configuration in the communication channel or adapter.
  Runtime errors in the proxy or adapter module.
  Authorization or security issues (e.g., SSL certificates, user permissions).
  Payload or message format issues causing the adapter to fail.
  System resource issues (memory, database locks, etc.) causing the postprocessing to fail.
  
  
  Solution / Troubleshooting Steps:
  
  
  Check Detailed Logs:
  
  Go to the SAP PI/PO Runtime Workbench or SAP NetWeaver Administrator.
  Check the Adapter Engine logs and Integration Engine logs for detailed error messages.
  Look for stack traces or specific error codes related to the failure.
  
  
  
  Verify Communication Channel Configuration:
  
  Ensure the communication channel for the service (&1) is correctly configured.
  Check adapter type, connection parameters, credentials, and SSL settings.
  Test the connection from the channel monitoring.
  
  
  
  Check Network Connectivity:
  
  Verify that the target system or endpoint is reachable.
  Check firewall settings, proxy settings, and network stability.
  
  
  
  Check Proxy Runtime:
  
  If the service is a proxy, check the proxy runtime in the SAP backend system.
  Look for dumps or errors in transaction ST22 or SM21.
  
  
  
  Authorization and Security:
  
  Verify that the user used in the communication channel has the necessary authorizations.
  Check SSL certificates if HTTPS is used; ensure certificates are valid and trusted.
  
  
  
  Message Content and Format:
  
  Validate the message payload for correctness.
  Check if any mandatory fields are missing or if the message structure is corrupted.
  
  
  
  System Resources:
  
  Check system health (memory, CPU, database locks).
  Restart adapter engine or integration engine if necessary.
  
  
  
  Reprocess the Message:
  
  If the message is in error status, try reprocessing it after fixing the root cause.
  
  
  
  
  Related Information:
  
  
  Transaction / Tools:
  
  SXMB_MONI (Message Monitoring)
  SXI_MONITOR (Integration Engine Monitoring)
  SMQ1 / SMQ2 (Outbound / Inbound queues)
  ST22 (Dump Analysis)
  SM21 (System Log)
  NWA (NetWeaver Administrator) for adapter and system logs
  
  
  
  SAP Notes:
  
  Search for SAP Notes related to WPRO_XI_PROXY008 or the specific adapter/service name.
  Common notes address known bugs or patches for adapter failures.
  
  
  
  Documentation:
  
  SAP Help Portal for SAP PI/PO Adapter Configuration.
  SAP Community forums for similar issues and solutions.
  
  
  
  
  If you provide the exact service name (&1) and postprocessing step (&2), or any additional log details, I can help narrow down the cause further.