How To Fix /SCMTMS/VSS_OL106 - Scheduling aborted; call scheduling action in update task is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/VSS_OL -

• Message number: 106

• Message text: Scheduling aborted; call scheduling action in update task is not allowed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/VSS_OL106 - Scheduling aborted; call scheduling action in update task is not allowed ?

  The SAP error message /SCMTMS/VSS_OL106 Scheduling aborted; call scheduling action in update task is not allowed typically occurs in the context of SAP Transportation Management (TM) when there is an issue with scheduling actions during an update task. This error indicates that the system is trying to perform a scheduling action in a context where it is not permitted, usually during a database update.
  Causes:
  
  Update Task Context: The error often arises when a scheduling action is attempted while the system is in an update task. In SAP, certain actions cannot be executed during an update task to maintain data integrity.
  Concurrency Issues: If multiple processes are trying to access or modify the same data simultaneously, it can lead to this error.
  Configuration Issues: Incorrect configuration in the transportation management settings or in the scheduling parameters can also lead to this error.
  Custom Code: If there are custom enhancements or modifications in the scheduling logic, they might not be handling the update task context correctly.
  
  Solutions:
  
  Check for Update Task: Ensure that the scheduling action is not being called during an update task. You may need to review the code or the process flow to ensure that scheduling actions are only called when the system is not in an update task.
  Review Custom Code: If there are any custom developments related to scheduling, review them to ensure they are compliant with SAP's guidelines for update tasks.
  Transaction Management: Ensure that the transactions are being managed properly and that there are no overlapping processes that could lead to concurrency issues.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  System Logs: Review the system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  Consult Documentation: Refer to the official SAP documentation for Transportation Management to ensure that all configurations are set up correctly.
  
  Related Information:
  
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide more detailed insights based on your specific system configuration and version.
  Community Forums: Engage with the SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  Testing: If possible, replicate the issue in a development or test environment to better understand the conditions under which the error occurs.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.