How To Fix /AIF/MES023 - Only files with CR/LF or fixed line length are supported

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/MES -

• Message number: 023

• Message text: Only files with CR/LF or fixed line length are supported

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 /AIF/MES023 - Only files with CR/LF or fixed line length are supported ?

  The SAP error message /AIF/MES023 Only files with CR/LF or fixed line length are supported typically occurs in the context of the SAP Application Interface Framework (AIF) when processing files. This error indicates that the file format being processed does not meet the expected criteria for line endings or structure.
  Cause:
  
  
  Incorrect Line Endings: The file being processed may not have the correct line endings. SAP expects files to use either:
  
  Carriage Return (CR) and Line Feed (LF) combinations (common in Windows environments).
  Fixed line lengths (where each line has a consistent number of characters).
  
  
  
  File Format Issues: The file may be in a format that is not supported by AIF, such as files with inconsistent line endings or those that do not conform to the expected structure.
  
  
  Encoding Issues: The file may be encoded in a way that is not compatible with SAP's expectations (e.g., UTF-16 instead of UTF-8).
  
  
  Solution:
  
  
  Check Line Endings: Ensure that the file uses the correct line endings. You can use text editors like Notepad++ or tools like dos2unix to convert line endings to the appropriate format.
  
  
  Verify File Structure: Make sure that the file adheres to the expected structure. If fixed line lengths are required, ensure that each line in the file has the same number of characters.
  
  
  Encoding: Check the file encoding. Convert the file to UTF-8 if it is not already in that format. This can often be done using text editors or command-line tools.
  
  
  Test with Sample Files: If possible, test the AIF process with a known good file that meets the expected criteria to ensure that the issue is with the file and not with the AIF configuration.
  
  
  Review AIF Configuration: Check the AIF configuration settings to ensure that they are set up correctly for the type of file you are processing.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message.
  Documentation: Review the SAP AIF documentation for details on supported file formats and configurations.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By addressing the file format and ensuring it meets the requirements set by SAP AIF, you should be able to resolve the error message /AIF/MES023.