How To Fix TQ408 - Deleting from buffer: rc=&

SAP Error Message - Details

• Message type: E = Error

• Message class: TQ - SAPup Messages

• Message number: 408

• Message text: Deleting from buffer: rc=&

What causes this issue?

The system attempted to delete a transport request from a transport
queue (buffer file). The return code of this action is logged.

System Response

The system's reaction depends on the value of the return code. In
certain circumstances the system will cancel other actions.

How to fix this error?

If this is the case, check the other log messages before this line, and
try and remove the problem.
The exact meaning of the individual values of the return code cannot be
explained here. They are program-internal. Their logs are intended as a
help tool for specialists. Generally, however, it is useful to analyze
the log lines before this one, to try and determine the cause of the
problem.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TQ408 - Deleting from buffer: rc=& ?

  The SAP error message TQ408, which states "Deleting from buffer: rc=&", typically relates to issues with the SAP buffer management system, particularly when it comes to the deletion of entries from the buffer. The "rc" in the message refers to the return code, which can provide additional context about the nature of the error.
  Cause:
  
  Buffer Inconsistency: The error may occur if there is an inconsistency in the buffer, possibly due to a failed update or a system crash.
  Memory Issues: Insufficient memory or issues with the buffer size configuration can lead to problems when trying to delete entries.
  Database Locking: If the database is locked or if there are issues with the database connection, it may prevent the buffer from being updated or cleared.
  Configuration Issues: Incorrect configuration settings in the SAP system related to buffer management can also lead to this error.
  
  Solution:
  
  Check Return Code: Analyze the return code (rc) provided in the error message. This code can give you specific information about the nature of the error and help in troubleshooting.
  Buffer Management: Review the buffer management settings in your SAP system. Ensure that the buffer sizes are configured correctly and that there are no inconsistencies.
  Database Check: Check the database for any locks or issues. You may need to release locks or resolve any database connectivity issues.
  System Restart: In some cases, restarting the SAP system can help clear temporary issues with the buffer.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error. SAP frequently releases updates that can resolve known issues.
  Consult Documentation: Review the SAP documentation related to buffer management for additional insights and troubleshooting steps.
  
  Related Information:
  
  SAP Basis Team: If you are unable to resolve the issue, it may be beneficial to involve your SAP Basis team, as they have the expertise in managing system configurations and performance.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to check for locks), SM21 (to view system logs), and ST22 (to check for dumps) for further investigation.
  Performance Monitoring: Regularly monitor the performance of your SAP system to identify potential buffer-related issues before they escalate into errors.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.