How To Fix /IWFND/CM_DESIGNTIME022 - Unexpected parameter class: '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 022

• Message text: Unexpected parameter class: '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_DESIGNTIME022 - Unexpected parameter class: '&1' ?

  The SAP error message /IWFND/CM_DESIGNTIME022 Unexpected parameter class: '&1' typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an unexpected parameter class being passed in the request, which the system does not recognize or cannot process.
  Cause:
  
  Incorrect Parameter Class: The error is often caused by a mismatch between the expected parameter class in the OData service and the one being sent in the request. This could be due to a typo, an outdated service definition, or a misconfiguration in the service.
  Service Versioning: If the OData service has been updated or changed, and the client is still using an older version, it may lead to this error.
  Model Changes: Changes in the underlying data model or service definition that are not reflected in the client request can also trigger this error.
  
  Solution:
  
  Check the OData Service Definition: Review the service definition in the SAP Gateway Service Builder (transaction code SEGW) to ensure that the parameter classes are correctly defined and match what is being sent in the request.
  Update the Client: If the client application is using an outdated version of the service, update it to use the latest version that corresponds with the service definition.
  Regenerate the Service: If there have been changes to the service, regenerate the service and re-activate it. This can be done in the Service Builder.
  Debugging: Use transaction code /IWFND/ERROR_LOG to check for more detailed error logs that can provide additional context about the error.
  Check for Typos: Ensure that there are no typos in the parameter names or values being sent in the request.
  Consult Documentation: Review the documentation for the specific OData service to ensure that you are using the correct parameters and formats.
  
  Related Information:
  
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/ERROR_LOG: To view error logs related to OData services.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to this error.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and potential solutions.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team for further assistance.