How To Fix TG664 - Error during writing command file list & (return code &)

TG664 - Overview

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 664

• Message text: Error during writing command file list & (return code &)

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TG664 - Error during writing command file list & (return code &) ?

  The SAP error message TG664, which indicates "Error during writing command file list & (return code &)," typically occurs during the execution of a transport request or when trying to export or import objects in the SAP system. This error can be caused by several factors, and here are some common causes, potential solutions, and related information:
  Causes:
  
  File System Issues: The file system where the transport directory is located may be full or not accessible.
  Permissions: The user executing the transport may not have the necessary permissions to write to the transport directory.
  Transport Directory Configuration: The transport directory may not be correctly configured in the system.
  Network Issues: If the transport is being executed over a network, there may be connectivity issues.
  Transport Tool Issues: There may be issues with the transport tools or the transport management system.
  
  Solutions:
  
  Check Disk Space: Ensure that there is enough disk space in the transport directory. You can check