How To Fix CX_WDK_POWL004 - Filename illegal (has no extension)

SAP Error Message - Details

• Message type: E = Error

• Message class: CX_WDK_POWL -

• Message number: 004

• Message text: Filename illegal (has no extension)

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 CX_WDK_POWL004 - Filename illegal (has no extension) ?

  The SAP error message CX_WDK_POWL004 indicates that there is an issue with a filename that is considered illegal because it does not have a proper file extension. This error typically occurs in the context of the SAP Web Dynpro applications, particularly when dealing with the Personal Object Worklist (POWL) or file uploads.
  Cause:
  
  Missing File Extension: The most common cause of this error is that the file being processed does not have a valid file extension. For example, if you try to upload a file named document without an extension, it will trigger this error.
  Incorrect File Naming: The filename may contain invalid characters or formats that are not accepted by the system.
  Configuration Issues: There may be configuration settings in the SAP system that restrict certain file types or extensions.
  
  Solution:
  
  Check the Filename: Ensure that the file you are trying to upload has a valid extension (e.g., .txt, .pdf, .docx, etc.). Rename the file if necessary.
  Validate File Format: Make sure that the file format is supported by the SAP application you are using. Refer to the documentation for the specific application to see which file types are allowed.
  Review Configuration Settings: If you have access to the system configuration, check for any settings that might restrict file uploads or specify allowed file types. This may involve consulting with your SAP Basis or security team.
  Test with Different Files: Try uploading different files with known valid extensions to see if the issue persists. This can help determine if the problem is with the specific file or a broader issue with the application.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that might address this issue. There may be patches or updates that resolve known bugs related to file handling.
  
  Related Information:
  
  SAP Documentation: Review the official SAP documentation for the specific module or application you are working with to understand file handling and restrictions.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Error Handling: Familiarize yourself with general error handling practices in SAP, as this can help you troubleshoot similar issues in the future.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP support team or consult with SAP directly for further assistance.