How To Fix /IWFND/MED001 - The given model type key '&1' is not a valid meta model type

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/MED -

• Message number: 001

• Message text: The given model type key '&1' is not a valid meta model type

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/MED001 - The given model type key '&1' is not a valid meta model type ?

  The SAP error message /IWFND/MED001 The given model type key '&1' is not a valid meta model type typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to recognize the specified model type key, which is often due to configuration issues or missing metadata.
  Causes:
  
  Invalid Model Type Key: The model type key specified in the request does not match any of the valid model types defined in the system.
  Missing Metadata: The metadata for the OData service may not be properly defined or may be missing entirely.
  Service Not Activated: The OData service may not be activated in the SAP Gateway.
  Transport Issues: If the service was recently transported from one system to another, there may be inconsistencies in the metadata.
  Incorrect Configuration: There may be incorrect settings in the service configuration or in the model definition.
  
  Solutions:
  
  Check Model Type Key: Verify that the model type key being used in the request is correct and matches the expected values in the system.
  Activate OData Service: Ensure that the OData service is activated in the SAP Gateway. You can do this using transaction code /IWFND/MAINT_SERVICE.
  Check Metadata: Use transaction code /IWFND/ERROR_LOG to check for any errors related to the OData service. You can also access the metadata directly via the service URL (e.g., http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) to ensure it is correctly defined.
  Regenerate Service: If there are issues with the service, consider regenerating the service or re-implementing the model.
  Check Transport Requests: If the service was transported, ensure that all necessary objects and configurations were included in the transport request.
  Review Configuration: Check the configuration settings in the SAP Gateway and ensure that they are correctly set up for the OData service.
  
  Related Information:
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To manage and activate OData services.
  /IWFND/ERROR_LOG: To view error logs related to OData services.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error.
  Documentation: Review the SAP Gateway documentation for more information on model types and OData service configuration.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further investigation.