How To Fix SADT_REST105 - A specific header name: &2 is expected but is missing (Line: &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: SADT_REST - Messages for ADT REST Framework

• Message number: 105

• Message text: A specific header name: &2 is expected but is missing (Line: &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADT_REST105 - A specific header name: &2 is expected but is missing (Line: &1) ?

  The SAP error message SADT_REST105 indicates that a specific header name is expected in a REST API call but is missing. This error typically occurs when the API request does not include a required HTTP header, which is necessary for the processing of the request.
  Cause:
  
  Missing Header: The most common cause is that the API request is missing a required header. This could be an authorization header, content type, or any other custom header that the API expects.
  Incorrect Configuration: The API endpoint may be configured to require certain headers that are not being sent by the client.
  Client-Side Error: The client application making the API call may have a bug or misconfiguration that prevents it from sending the required headers.
  
  Solution:
  
  Check API Documentation: Review the API documentation to identify the required headers for the specific endpoint you are trying to access. Ensure that you are including all necessary headers in your request.
  Add Missing Header: Modify your API request to include the missing header. For example, if the error message indicates that an "Authorization" header is missing, you need to add it with the appropriate token or credentials.
  Validate Request Format: Ensure that the request format (e.g., JSON, XML) is correct and that the headers are properly formatted.
  Debugging: If you are using a tool or library to make the API call, check the logs or debug output to see what headers are being sent. This can help identify any discrepancies.
  Test with Tools: Use tools like Postman or cURL to manually test the API call with the required headers to ensure that the issue is not with the client application.
  
  Related Information:
  
  HTTP Headers: Common headers that might be required include:
  
  Authorization: For authentication tokens.
  Content-Type: To specify the media type of the resource (e.g., application/json).
  Accept: To specify the media types that are acceptable for the response.
  
  
  SAP API Management: If you are using SAP API Management, ensure that the API proxy is correctly configured to pass through the required headers.
  Error Handling: Implement error handling in your application to catch and log such errors, which can help in troubleshooting similar issues in the future.
  
  By following these steps, you should be able to resolve the SADT_REST105 error and ensure that your API requests are properly formatted with all required headers.