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

CY155 - Overview

• 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.

CY155 - Details

• 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