How To Fix STC_TM255 - Task list run is not processing; stop signal not required

SAP Error Message - Details

• Message type: E = Error

• Message class: STC_TM - Task List Manager Messages

• Message number: 255

• Message text: Task list run is not processing; stop signal not required

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message STC_TM255 - Task list run is not processing; stop signal not required ?

  The SAP error message STC_TM255 indicates that a task list run is not processing due to a stop signal that is not required. This message typically arises in the context of background processing in SAP, particularly when dealing with task lists in the SAP Solution Manager or other related systems.
  Cause:
  
  Task List Configuration: The task list may have been configured incorrectly, leading to a situation where it is not processing as expected.
  System Lock: There may be a lock on the task list or the system that prevents it from processing.
  Background Job Issues: The background job that is supposed to execute the task list may have encountered issues or may not be scheduled correctly.
  Dependencies: There may be dependencies on other tasks or processes that have not been met, causing the task list to halt.
  User Intervention: Sometimes, a user may have manually stopped the task list, leading to this message.
  
  Solution:
  
  Check Task List Configuration: Review the configuration of the task list to ensure that all parameters are set correctly.
  Review Background Jobs: Check the status of the background jobs associated with the task list. You can do this using transaction code SM37 to see if there are any failed jobs or if the job is still running.
  Release Locks: If there are locks on the task list or system, you may need to release them. You can use transaction SM12 to check for and delete any unnecessary locks.
  Check Dependencies: Ensure that all prerequisite tasks or processes have been completed successfully before the task list is executed.
  Restart the Task List: If the task list is not processing, you may need to restart it. This can often resolve temporary issues.
  Review Logs: Check the logs for any additional error messages or warnings that may provide more context on why the task list is not processing.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ST22 (Dump Analysis), SM21 (System Log), and SLG1 (Application Log) to gather more information about the issue.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to STC_TM255.
  Documentation: Review SAP documentation related to task list management and background processing for best practices and troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.