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

SAP Error Message - Details

• 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

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 this using operating system commands (e.g., df -h on Unix/Linux).
  Verify Permissions: Check the permissions of the transport directory and ensure that the user has write access. You may need to adjust the permissions or run the transport as a user with the necessary rights.
  Review Transport Directory Configuration: Verify that the transport directory is correctly configured in the SAP system. You can check this in transaction STMS under the "Transport Routes" section.
  Check Network Connectivity: If the transport is being executed over a network, ensure that there are no connectivity issues. You can test this by pinging the relevant servers or checking network configurations.
  Review Transport Logs: Check the transport logs for more detailed error messages that can provide additional context about the failure. You can find logs in transaction STMS or in the transport directory.
  Restart Transport Management System: Sometimes, restarting the transport management system can resolve transient issues.
  Consult SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like STMS (Transport Management System) and SE01 (Transport Organizer) for managing transports.
  SAP Notes: Search for SAP Notes related to transport errors, as they often contain specific fixes or workarounds for known issues.
  System Logs: Check system logs (transaction SM21) for any related errors that might provide more context.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance, providing them with detailed logs and error messages for a more accurate diagnosis.