How To Fix /IWBEP/CM_CP104 - Server response has the wrong format (content-type) '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 104

• Message text: Server response has the wrong format (content-type) '&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.

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 /IWBEP/CM_CP104 - Server response has the wrong format (content-type) '&1' ?

  The SAP error message /IWBEP/CM_CP104 indicates that the server response received by the SAP Gateway has an unexpected or incorrect content type. This typically occurs when the server is expected to return a specific format (like JSON or XML) but instead returns a different format or an error message that does not conform to the expected content type.
  Causes:
  
  Incorrect Content-Type Header: The server may be returning a response with a Content-Type header that does not match what the SAP Gateway is expecting.
  Server Errors: The backend service might be encountering an error and returning an HTML error page instead of the expected JSON or XML response.
  Configuration Issues: There may be misconfigurations in the service or the Gateway settings that lead to incorrect response formats.
  Network Issues: Intermediary proxies or firewalls might alter the response, leading to unexpected content types.
  Service Implementation Issues: The OData service might not be implemented correctly, leading to unexpected responses.
  
  Solutions:
  
  Check the Backend Service: Ensure that the backend service is functioning correctly and returning the expected content type. You can test the service directly using tools like Postman or a web browser.
  Inspect the Response: Use tools like Fiddler or browser developer tools to inspect the actual response from the server. Check the Content-Type header and the body of the response.
  Review Service Configuration: Verify the configuration of the OData service in the SAP Gateway. Ensure that the service is correctly defined and activated.
  Error Handling: Implement proper error handling in the backend service to ensure that it returns a valid response even in case of errors.
  Check for Middleware Issues: If there are any middleware components (like API gateways or proxies), ensure they are not altering the response in a way that changes the content type.
  Update SAP Gateway: Ensure that your SAP Gateway is up to date with the latest patches and updates, as there may be bug fixes related to content handling.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently publishes notes that address specific error messages and their resolutions.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for OData services and SAP Gateway to ensure compliance with expected formats and configurations.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.