How To Fix SPXN143 - WSDL does not match Semantic Contract &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SPXN - Proxy Generation

• Message number: 143

• Message text: WSDL does not match Semantic Contract &1

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 SPXN143 - WSDL does not match Semantic Contract &1 ?

  The SAP error message SPXN143 indicates that there is a mismatch between the WSDL (Web Services Description Language) file and the semantic contract defined in the SAP system. This error typically occurs when there are discrepancies between the expected structure of the web service and the actual WSDL being used.
  Cause:
  
  WSDL Changes: The WSDL file may have been modified or generated incorrectly, leading to a mismatch with the semantic contract.
  Version Mismatch: The version of the WSDL being used may not correspond to the version of the service defined in the SAP system.
  Service Definition Changes: Changes in the service definition in the SAP system (like changes in data types, operations, or message structures) that are not reflected in the WSDL.
  Configuration Issues: Incorrect configuration settings in the SAP system or in the web service consumer that lead to the mismatch.
  
  Solution:
  
  
  Regenerate WSDL: If the WSDL has been modified, regenerate it from the SAP system to ensure it matches the current semantic contract.
  
  Use transaction code SOAMANAGER to regenerate the WSDL.
  Ensure that you select the correct service and version when generating the WSDL.
  
  
  
  Check Service Definition: Review the service definition in the SAP system to ensure that it matches the expected structure of the WSDL.
  
  Use transaction code SE80 or SE37 to check the service interface and its operations.
  
  
  
  Update Consumer Configuration: If you are using a web service consumer, ensure that it is configured to use the correct WSDL and that it is compatible with the service definition in SAP.
  
  
  Version Control: Ensure that both the SAP system and the consumer are using the same version of the WSDL. If there are multiple versions, make sure to use the correct one.
  
  
  Testing: After making changes, test the web service call again to ensure that the error is resolved.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SOAMANAGER for managing web services, SE80 for object navigation, and SE37 for function modules.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific version of SAP you are using.
  Documentation: Review SAP documentation on web services and WSDL generation for best practices and troubleshooting tips.
  
  By following these steps, you should be able to resolve the SPXN143 error and ensure that your WSDL matches the semantic contract defined in your SAP system.