How To Fix STC_TM266 - Stop signal received; Waiting for task '&1' to finish

SAP Error Message - Details

• Message type: E = Error

• Message class: STC_TM - Task List Manager Messages

• Message number: 266

• Message text: Stop signal received; Waiting for task '&1' to finish

What causes this issue?

Task list run is supposed to be interrupted, but currently running task
'&V1&' could not be stopped.

System Response

The task list run will stop when the current task is finished.

How to fix this error?

Wait until the current task is finished. The task list run will then
stop automatically and the next task will not be processed.
Refresh the user interface to get an update.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message STC_TM266 - Stop signal received; Waiting for task '&1' to finish ?

  The SAP error message STC_TM266, which states "Stop signal received; Waiting for task '&1' to finish," typically occurs in the context of background processing or task management within the SAP system. This message indicates that a stop signal has been received for a task, but the system is still waiting for the specified task (denoted by '&1') to complete before it can fully process the stop request.
  Causes:
  
  Manual Stop Request: A user or administrator may have manually issued a stop command for a task that is currently running.
  System Shutdown: The system may be undergoing a shutdown or restart process, which can trigger stop signals for running tasks.
  Long-Running Tasks: The task that is being waited on may be taking longer than expected to complete, causing the system to hold the stop signal until it finishes.
  Deadlocks or Resource Contention: The task may be stuck due to deadlocks or resource contention, preventing it from completing.
  Configuration Issues: There may be configuration issues in the task management settings that are causing delays or failures in task completion.
  
  Solutions:
  
  Wait for Completion: If the task is expected to complete soon, you may simply wait for it to finish. Monitor the task's progress in transaction codes like SM37 (Job Monitoring).
  Check Task Status: Use transaction SM37 to check the status of the task. If it is stuck, you may need to investigate further.
  Force Termination: If the task is not completing and you need to stop it, you can forcefully terminate the task using transaction SM37 or ST22 (Dump Analysis) to identify any issues.
  Review Logs: Check the system logs (transaction SLG1) for any related error messages or warnings that could provide more context on why the task is not completing.
  System Resources: Ensure that the system has adequate resources (CPU, memory, etc.) to handle the tasks being processed. If resources are constrained, consider optimizing or scaling your environment.
  Consult SAP Notes: Look for relevant SAP Notes or documentation that may address specific issues related to this error message. SAP Support may have updates or patches that can resolve underlying issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring), ST22 (Dump Analysis), and SLG1 (Application Log) for troubleshooting.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is impacting critical business processes.
  Documentation: Review SAP documentation for best practices in task management and background processing to prevent similar issues in the future.
  
  By following these steps, you should be able to diagnose and resolve the STC_TM266 error effectively.