How To Fix CNV_DMC_WDA134 - Cannot upload file; error occurred while reading file

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 134

• Message text: Cannot upload file; error occurred while reading file

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 CNV_DMC_WDA134 - Cannot upload file; error occurred while reading file ?

  The SAP error message CNV_DMC_WDA134 indicates that there was an issue while trying to upload a file, specifically during the reading process of that file. This error is often encountered in the context of data migration or data conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Possible Causes:
  
  File Format Issues: The file may not be in the expected format (e.g., CSV, TXT) or may contain invalid characters.
  File Encoding: The file might be encoded in a format that is not supported (e.g., UTF-16 instead of UTF-8).
  File Size: The file may be too large for the system to handle in one go.
  File Path Issues: The specified file path may be incorrect or the file may not be accessible due to permissions.
  Corrupted File: The file itself may be corrupted or incomplete.
  Network Issues: If the file is being accessed over a network, there may be connectivity issues.
  
  Solutions:
  
  Check File Format: Ensure that the file is in the correct format and adheres to the expected structure.
  Verify Encoding: Open the file in a text editor and check the encoding. Convert it to UTF-8 if necessary.
  Reduce File Size: If the file is too large, consider splitting it into smaller files and uploading them separately.
  Check File Path and Permissions: Ensure that the file path is correct and that the user has the necessary permissions to access the file.
  Validate File Integrity: Open the file to check for any corruption or missing data. If the file is corrupted, try to obtain a new copy.
  Network Stability: If applicable, check the network connection and ensure that there are no interruptions.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Logs: Review the application logs for more detailed error messages that can provide further context.
  Documentation: Refer to the SAP documentation for the specific data migration tool you are using for any additional requirements or troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with your SAP Basis or technical team for further assistance.