How To Fix /IWFND/CM_MGW079 - MIME Type '&1' is not supported


SAP Error Message - Details

  • Message type: E = Error

  • Message class: /IWFND/CM_MGW -

  • Message number: 079

  • Message text: MIME Type '&1' is not supported

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  • 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/CM_MGW079 - MIME Type '&1' is not supported ?

    The SAP error message /IWFND/CM_MGW079 MIME Type '&1' is not supported typically occurs in the context of SAP Gateway services when the system encounters a MIME type that it does not recognize or support. This can happen during the processing of HTTP requests, particularly when dealing with OData services.

    Cause:

    1. Unsupported MIME Type: The error indicates that the MIME type specified in the request is not supported by the SAP Gateway. This could be due to a typo in the MIME type or an unsupported format being requested.
    2. Incorrect Content-Type Header: The Content-Type header in the HTTP request may be set to a value that is not recognized by the SAP system.
    3. Configuration Issues: There may be configuration issues in the SAP Gateway settings that prevent it from recognizing certain MIME types.
    4. Client-Side Issues: The client application making the request may be sending an incorrect or unsupported MIME type.

    Solution:

    1. Check the Request: Review the HTTP request being sent to the SAP Gateway. Ensure that the Content-Type header is set to a supported MIME type, such as:
      • application/json for JSON data
      • application/xml for XML data
      • application/x-www-form-urlencoded for form data
    2. Update the Client Application: If the client application is sending an unsupported MIME type, update it to use a supported type.
    3. SAP Gateway Configuration: Check the SAP Gateway configuration to ensure that it is set up to handle the required MIME types. This may involve:
      • Checking the service registration in the SAP Gateway.
      • Ensuring that the necessary MIME types are enabled in the system.
    4. Debugging: If the issue persists, consider enabling debugging or logging in the SAP Gateway to get more detailed information about the request and the error.
    5. Consult Documentation: Refer to the SAP documentation for the specific version you are using to see the list of supported MIME types and any additional configuration steps that may be required.

    Related Information:

    • SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
    • SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found.
    • OData Services: Familiarize yourself with the OData protocol and the expected MIME types for requests and responses, as this can help in troubleshooting similar issues in the future.

    By following these steps, you should be able to resolve the error and ensure that your SAP Gateway can handle the MIME types being used in your requests.

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