How To Fix SADT_REST107 - Invalid request, maybe lf is used instead of crlf

SAP Error Message - Details

• Message type: E = Error

• Message class: SADT_REST - Messages for ADT REST Framework

• Message number: 107

• Message text: Invalid request, maybe lf is used instead of crlf

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADT_REST107 - Invalid request, maybe lf is used instead of crlf ?

  The SAP error message SADT_REST107: Invalid request, maybe LF is used instead of CRLF typically occurs when there is an issue with the formatting of the HTTP request being sent to the SAP system. This error suggests that the request is not properly formatted according to the expected standards, particularly in terms of line endings.
  Cause:
  
  Line Ending Issues: The error indicates that the request may be using LF (Line Feed) instead of CRLF (Carriage Return + Line Feed). HTTP/1.1 requires that lines in the request be terminated with CRLF.
  Incorrectly Formatted HTTP Request: If the request is constructed manually or through a script, it may not adhere to the proper HTTP formatting standards.
  Client-Side Issues: The client making the request (e.g., a web application, Postman, or a custom application) may not be configured to use the correct line endings.
  
  Solution:
  
  Check Line Endings: Ensure that the HTTP request is using CRLF (\r\n) for line endings instead of just LF (\n). This can often be configured in the client or the code that constructs the HTTP request.
  Use a Proper HTTP Client: If you are manually crafting HTTP requests, consider using a library or tool that handles HTTP requests properly, as they will automatically manage line endings and other formatting issues.
  Review Code: If you are developing an application that sends requests to SAP, review the code to ensure that it constructs the HTTP request correctly. Look for any places where line endings might be set incorrectly.
  Testing Tools: Use tools like Postman or cURL to test the request format. These tools typically handle the formatting correctly and can help isolate whether the issue is with the request itself or the client application.
  
  Related Information:
  
  HTTP Protocol: Understanding the HTTP protocol and its requirements can help in troubleshooting issues related to request formatting.
  SAP Documentation: Refer to SAP's official documentation for any specific requirements or examples related to the API or service you are trying to access.
  Debugging Tools: Use network monitoring tools (like Fiddler or Wireshark) to inspect the raw HTTP requests being sent to the SAP system. This can help identify formatting issues.
  
  By ensuring that your HTTP requests are properly formatted with CRLF line endings, you should be able to resolve the SADT_REST107 error.