How To Fix REST_CORE_TEXTS034 - HTTP header 'X-Requested-With' is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: REST_CORE_TEXTS -

• Message number: 034

• Message text: HTTP header 'X-Requested-With' is missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message REST_CORE_TEXTS034 - HTTP header 'X-Requested-With' is missing ?

  The SAP error message "REST_CORE_TEXTS034 HTTP header 'X-Requested-With' is missing" typically occurs when a request to an SAP OData service or REST API does not include the required HTTP header X-Requested-With. This header is often used to indicate that the request is being made via AJAX or a similar mechanism, and its absence can lead to the server rejecting the request.
  Cause:
  
  Missing Header: The client application (e.g., a web application or mobile app) is not sending the X-Requested-With header in the HTTP request.
  Configuration Issues: The SAP backend may be configured to require this header for security or validation purposes.
  Client-Side Code: The code that constructs the HTTP request may not be properly including the header.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Add the Header: Ensure that the client application includes the X-Requested-With header in the HTTP request. For example, if you are using JavaScript with jQuery, you can set it like this:
  $.ajax({
      url: 'your_api_endpoint',
      type: 'GET',
      headers: {
          'X-Requested-With': 'XMLHttpRequest'
      },
      success: function(data) {
          // Handle success
      },
      error: function(error) {
          // Handle error
      }
  });
  
  
  Check API Documentation: Review the API documentation for the specific SAP service you are using to confirm whether the X-Requested-With header is required and if there are any other required headers.
  
  
  Server Configuration: If you have access to the SAP backend configuration, check if there are settings that enforce the requirement for this header. Adjust the settings if necessary, but be cautious as this may have security implications.
  
  
  Testing: After making the changes, test the request again to ensure that the error is resolved.
  
  
  Related Information:
  
  Security Implications: The X-Requested-With header is often used as a security measure to prevent CSRF (Cross-Site Request Forgery) attacks. Be mindful of security practices when modifying header requirements.
  SAP OData Services: If you are working with SAP OData services, ensure that you are familiar with the OData protocol and how it handles requests and responses.
  Debugging Tools: Use tools like Postman or browser developer tools to inspect the HTTP requests being sent and verify that the headers are correctly included.
  
  By following these steps, you should be able to resolve the error and successfully make requests to the SAP service.