How To Fix CY155 - An error occurred when data was written to file & on your PC

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 155

• Message text: An error occurred when data was written to file & on your PC

What causes this issue?

When attempting to write data to a file for your MS-EXCEL program, a
system error occurrred.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please check the connection to your PC.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY155 - An error occurred when data was written to file & on your PC ?

  The SAP error message CY155, which states "An error occurred when data was written to file & on your PC," typically indicates an issue with the file writing process in SAP. This can occur for various reasons, and understanding the cause is essential for finding a solution. Here are some common causes, potential solutions, and related information:
  Causes:
  
  File Path Issues: The specified file path may be incorrect or inaccessible. This could be due to permissions, network issues, or incorrect directory paths.
  Insufficient Permissions: The user may not have the necessary permissions to write to the specified location on the local machine.
  Disk Space: There may not be enough disk space available on the local machine to save the file.
  File Locking: The file may be locked by another process or application, preventing SAP from writing to it.
  Antivirus/Firewall Interference: Security software may block SAP from writing files to the specified location.
  SAP GUI Configuration: There may be issues with the SAP GUI settings or configuration that affect file writing.
  
  Solutions:
  
  Check File Path: Verify that the file path specified in the SAP transaction is correct and accessible. Ensure that the directory exists.
  Permissions: Ensure that the user has the necessary permissions to write to the specified directory. You may need to adjust folder permissions or run SAP with elevated privileges.
  Free Up Disk Space: Check the available disk space on the local machine and free up space if necessary.
  Close Other Applications: If the file is being used by another application, close that application to release the file lock.
  Disable Antivirus/Firewall Temporarily: If you suspect that security software is interfering, try temporarily disabling it to see if that resolves the issue. If it does, consider adding an exception for SAP.
  Check SAP GUI Settings: Review the SAP GUI settings to ensure that they are configured correctly for file downloads and writing.
  Use a Different Location: Try saving the file to a different location on your PC to see if the issue persists.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Logs and Traces: Review any logs or traces available in SAP for more detailed error messages that could provide additional context for troubleshooting.
  
  If the problem persists after trying these solutions, it may be beneficial to contact your IT support team or SAP support for further assistance.