How To Fix SADT_REST009 - CSRF token validation failed

SAP Error Message - Details

• Message type: E = Error

• Message class: SADT_REST - Messages for ADT REST Framework

• Message number: 009

• Message text: CSRF token validation failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADT_REST009 - CSRF token validation failed ?

  The SAP error message SADT_REST009: CSRF token validation failed typically occurs in SAP applications that use REST APIs, particularly when there is a Cross-Site Request Forgery (CSRF) protection mechanism in place. This error indicates that the CSRF token sent with the request does not match the expected token, which is a security measure to prevent unauthorized actions.
  Causes:
  
  Missing CSRF Token: The request does not include a CSRF token.
  Invalid CSRF Token: The CSRF token included in the request is either expired or incorrect.
  Session Issues: The user session may have expired, leading to an invalid token.
  Incorrect HTTP Method: The CSRF token is typically required for certain HTTP methods (like POST, PUT, DELETE). If the wrong method is used, the token may not be validated correctly.
  Multiple Requests: If multiple requests are made in quick succession, the token may change between requests, leading to validation failures.
  
  Solutions:
  
  
  Obtain a Valid CSRF Token:
  
  Before making a request that requires a CSRF token, send a GET request to the relevant endpoint to retrieve a valid token. The token is usually included in the response headers (e.g., X-CSRF-Token).
  Use this token in the subsequent requests that modify data (POST, PUT, DELETE).
  
  
  
  Check Session Validity:
  
  Ensure that the user session is active and has not expired. If it has, re-authenticate the user to obtain a new session and token.
  
  
  
  Correctly Include the CSRF Token:
  
  Ensure that the CSRF token is included in the request headers. The header should typically be named X-CSRF-Token and should contain the token value obtained from the previous GET request.
  
  
  
  Use the Correct HTTP Method:
  
  Ensure that you are using the correct HTTP method for the operation you are trying to perform. CSRF tokens are generally required for state-changing operations.
  
  
  
  Handle Token Expiry:
  
  Implement logic to handle token expiry gracefully. If a request fails due to a CSRF token validation error, re-fetch the token and retry the request.
  
  
  
  Related Information:
  
  CSRF Protection: CSRF tokens are a common security measure in web applications to prevent unauthorized actions from being performed on behalf of authenticated users.
  SAP Documentation: Refer to the official SAP documentation for specific details on how to handle CSRF tokens in the context of the SAP application you are working with.
  Debugging Tools: Use tools like Postman or browser developer tools to inspect requests and responses, ensuring that the CSRF token is being sent and received correctly.
  
  By following these steps, you should be able to resolve the CSRF token validation error in your SAP application.