How To Fix SRT_WSP2758 - Interfaces are not compatible

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP2 - Messages for SRT WSP

• Message number: 758

• Message text: Interfaces are not compatible

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.

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 SRT_WSP2758 - Interfaces are not compatible ?

  The SAP error message SRT_WSP2758 indicates that there is a compatibility issue between the interfaces being used in a web service scenario. This typically occurs when the service consumer and service provider are not aligned in terms of the expected data structures, operations, or versions of the web service.
  Causes:
  
  Mismatched WSDL: The Web Service Description Language (WSDL) file used by the consumer may not match the one provided by the service provider. This can happen if the service has been updated but the consumer has not been updated accordingly.
  Data Type Incompatibility: The data types expected by the consumer may differ from those provided by the service. This can include differences in data formats, structures, or even namespaces.
  Versioning Issues: If the service has multiple versions, the consumer might be calling an outdated version that does not support the expected operations or data structures.
  Configuration Errors: Incorrect configuration settings in the SAP system or middleware that handles the web service calls can lead to compatibility issues.
  
  Solutions:
  
  Update WSDL: Ensure that the consumer is using the correct and most recent WSDL file from the service provider. Regenerate the proxy or client code if necessary.
  Check Data Types: Review the data types and structures defined in both the consumer and provider interfaces. Make sure they are compatible and make adjustments as needed.
  Version Alignment: Verify that both the consumer and provider are using the same version of the web service. If there are multiple versions, ensure that the correct one is being called.
  Configuration Review: Check the configuration settings in the SAP system and any middleware (like SAP PI/PO) to ensure they are set up correctly for the web service communication.
  Testing: Use tools like SOAP UI or Postman to test the web service independently of the SAP system to ensure that it is functioning correctly and returning the expected responses.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on compatibility issues.
  Web Service Monitoring: Utilize SAP's monitoring tools to trace the web service calls and identify where the compatibility issue arises.
  Documentation: Review the documentation for both the consumer and provider services to understand the expected input and output formats.
  
  By following these steps, you should be able to identify and resolve the compatibility issue indicated by the SRT_WSP2758 error message.