How To Fix WPRO_XI_PROXY034 - Specify an inbound service

SAP Error Message - Details

• Message type: E = Error

• Message class: WPRO_XI_PROXY - Messages Service Processing Retail Event

• Message number: 034

• Message text: Specify an inbound service

Self-Explanatory Message

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• What is the cause and solution for SAP error message WPRO_XI_PROXY034 - Specify an inbound service ?

  SAP Error Message:
  
  WPRO_XI_PROXY034 Specify an inbound service
  
  Cause:
  This error occurs in SAP Process Integration (PI) or Process Orchestration (PO) scenarios when a proxy runtime cannot determine the inbound service to which an incoming message should be delivered. Essentially, the system expects an inbound service to be specified or configured, but it is missing or incorrectly set.
  Common causes include:  
  
  The inbound service (proxy service) is not specified in the communication channel or configuration.  
  The service interface or namespace is not correctly maintained or mismatched.  
  The integration scenario or communication channel is incomplete or incorrectly configured.  
  The message is received but the system cannot find a matching service to process it.
  
  
  Solution:
  To resolve the WPRO_XI_PROXY034 Specify an inbound service error, follow these steps:
  
  
  Check the Communication Channel Configuration:  
  
  Verify that the inbound communication channel has the correct service interface and namespace specified.  
  Ensure the channel is active and correctly linked to the integration scenario.
  
  
  
  Verify the Service Interface and Namespace:  
  
  Confirm that the service interface used in the sender proxy matches the one expected by the system.  
  Check the namespace and service name in the Enterprise Services Repository (ESR) or Integration Directory.
  
  
  
  Check the Integration Directory Configuration:  
  
  Make sure the sender agreement or communication channel is properly configured with the correct inbound service.  
  Validate the receiver determination and interface determination steps.
  
  
  
  Check the Proxy Runtime Configuration:  
  
  In the SAP backend system (e.g., ECC or S/4HANA), verify that the inbound proxy is generated and active.  
  Ensure the service is registered and active in the SOAMANAGER or relevant service registry.
  
  
  
  Review the Message Monitoring and Logs:  
  
  Use transaction SXMB_MONI or the Integration Engine monitoring tools to trace the message and identify where the service resolution fails.
  
  
  
  Re-import or Re-generate Proxy Objects:  
  
  If the proxy objects are outdated or corrupted, regenerate them using transaction SPROXY.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:  
  
  SPROXY – Proxy object generation and maintenance  
  SXMB_MONI – Message monitoring in PI/PO  
  SOAMANAGER – Web service configuration and monitoring  
  SXI_MONITOR – Integration engine monitoring
  
  
  
  SAP Notes and Documentation:  
  
  Check SAP Notes related to proxy runtime errors and inbound service configuration.  
  Refer to SAP PI/PO integration guides for configuring communication channels and service interfaces.
  
  
  
  General Tips:  
  
  Always ensure that the sender and receiver interfaces are consistent across ESR and Integration Directory.  
  Keep the namespace and service names consistent to avoid mismatches.  
  Validate all configurations after transport or system changes.
  
  
  
  
  If you provide more context (e.g., system version, scenario details), I can help with more specific guidance.