How To Fix DADT_ELEMENT_INFO056 - Accept header &1 is not acceptable of Request with URI &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DADT_ELEMENT_INFO - Element Info for Dictionary

• Message number: 056

• Message text: Accept header &1 is not acceptable of Request with URI &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DADT_ELEMENT_INFO056 - Accept header &1 is not acceptable of Request with URI &2 ?

  The SAP error message DADT_ELEMENT_INFO056 indicates that there is an issue with the HTTP request being sent to an SAP system, specifically related to the Accept header. This header is used by the client to specify the media types that are acceptable for the response. When the server cannot fulfill the request based on the Accept header provided, it generates this error.
  Cause:
  
  Invalid Accept Header: The Accept header in the HTTP request may contain media types that the SAP system does not support or recognize.
  Unsupported Media Type: The requested media type (e.g., application/json, application/xml, etc.) is not configured or supported by the SAP service being accessed.
  Configuration Issues: There may be configuration issues in the SAP system that prevent it from recognizing or processing the specified media types.
  
  Solution:
  
  
  Check the Accept Header: Review the Accept header in the HTTP request. Ensure that it contains valid media types that the SAP service can respond with. Common media types include:
  
  application/json
  application/xml
  text/html
  
  
  
  Modify the Request: If the Accept header is incorrect or includes unsupported media types, modify the request to include only the acceptable media types. For example, if you are expecting a JSON response, set the Accept header to application/json.
  
  
  Review SAP Service Configuration: Check the configuration of the SAP service you are trying to access. Ensure that it is set up to handle the media types you are requesting. This may involve checking the service definition in the SAP Gateway or OData service configuration.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific service you are using to understand the supported media types and any additional requirements.
  
  
  Testing with Tools: Use tools like Postman or curl to test the request with different Accept headers to identify which media types are accepted by the SAP service.
  
  
  Related Information:
  
  SAP Gateway: If you are working with OData services, familiarize yourself with the SAP Gateway and its configuration for handling different content types.
  HTTP Status Codes: Understanding HTTP status codes can help diagnose issues. For example, a 406 Not Acceptable status code indicates that the server cannot produce a response matching the list of acceptable values defined in the request's Accept header.
  SAP Notes: Check for any relevant SAP Notes or Knowledge Base Articles that may address specific issues related to the error message or the service you are using.
  
  By following these steps, you should be able to resolve the error and successfully interact with the SAP service.