How To Fix WZRE_PRX050 - Internal error: Interface proxy name could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_PRX - SOA messages from proxy implementations

• Message number: 050

• Message text: Internal error: Interface proxy name could not be determined

Self-Explanatory Message

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• What is the cause and solution for SAP error message WZRE_PRX050 - Internal error: Interface proxy name could not be determined ?

  The SAP error message:
  WZRE_PRX050 Internal error: Interface proxy name could not be determined
  
  Cause
  This error typically occurs when the SAP system is unable to determine or find the interface proxy name during runtime. This can happen due to:
  
  Missing or incorrectly generated proxy objects in the SAP system.
  Inconsistencies or missing entries in the proxy repository.
  Issues with the service interface or WSDL used to generate the proxy.
  Transport or system inconsistencies where the proxy was not properly imported or activated.
  Incorrect or incomplete configuration in the SOA Manager or Integration Directory.
  Problems in the communication setup where the system expects a proxy interface but cannot resolve it.
  
  
  Explanation
  In SAP PI/PO or SAP NetWeaver systems, proxies are generated ABAP objects that represent external service interfaces. When a proxy is called, the system needs to resolve the proxy interface name to the corresponding ABAP class or interface. If this resolution fails, the system throws the WZRE_PRX050 error.
  
  Solution
  
  
  Check Proxy Generation:
  
  Go to transaction SPROXY.
  Verify that the proxy interface in question exists and is correctly generated.
  If missing or outdated, regenerate the proxy.
  
  
  
  Re-import or Re-generate Proxies:
  
  If the proxy was imported via transport, ensure the transport was successfully imported.
  Re-import or regenerate the proxy objects if necessary.
  
  
  
  Check Service Interface and WSDL:
  
  Verify that the service interface and WSDL used to generate the proxy are consistent and correctly maintained.
  If changes were made to the WSDL or service interface, regenerate the proxy.
  
  
  
  Check SOA Manager / Integration Directory:
  
  Verify the configuration of the service interfaces and communication channels.
  Ensure that the proxy interface is correctly assigned and active.
  
  
  
  Check for System Inconsistencies:
  
  Run consistency checks in SPROXY.
  Use transaction SLG1 (Application Log) to check for related error logs.
  Check for any transport or system inconsistencies.
  
  
  
  Clear Cache and Restart:
  
  Sometimes clearing the cache or restarting the relevant application server can help resolve proxy resolution issues.
  
  
  
  Check Authorization:
  
  Ensure the user executing the proxy call has the necessary authorizations.
  
  
  
  
  Related Information
  
  Transaction SPROXY: Used to manage and generate proxies.
  Transaction SOAMANAGER: For configuring web services and service interfaces.
  SAP Note references (if available) related to proxy generation and interface resolution.
  SAP Community and OSS Notes may have specific fixes or patches if this is a known issue in a particular SAP version.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WZRE_PRX050 Internal error: Interface proxy name could not be determined
  
  
  Cause
  Proxy interface missing, not generated, or inconsistent proxy repository
  
  
  Solution
  Regenerate proxy in SPROXY, verify WSDL/service interface, check SOA Manager config
  
  
  Tools
  SPROXY, SOAMANAGER, SLG1, Transport Management
  
  
  Additional
  Check authorizations, clear cache, restart application server if needed
  
  
  
  
  If you provide more context (e.g., when the error occurs, system version, proxy name), I can help with more specific guidance.