How To Fix UCUS0031 - Task &1: Source task &1 may not be assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: UCUS0 - Messages for Tasks, ...

• Message number: 031

• Message text: Task &1: Source task &1 may not be assigned

What causes this issue?

You have assigned source task &V1& to copy task &V1&. This is not
permitted because the source task cannot be the same as the copy task.

System Response

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

How to fix this error?

Check the assignment of source tasks to copy task &V1&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCUS0031 - Task &1: Source task &1 may not be assigned ?

  The SAP error message UCUS0031 indicates that there is an issue with task assignment in a process chain or a similar context where tasks are being managed. Specifically, the message states: "Task &1: Source task &1 may not be assigned." This typically occurs when there is an attempt to assign a source task that is either not valid or not allowed in the current context.
  Cause:
  
  Invalid Task Assignment: The source task you are trying to assign may not be compatible with the target task or process chain.
  Task Status: The source task might be in a status that does not allow it to be assigned (e.g., it could be inactive or not released).
  Configuration Issues: There may be configuration settings that restrict the assignment of certain tasks.
  Circular Dependencies: The assignment may create a circular dependency, which is not allowed in task management.
  
  Solution:
  
  Check Task Validity: Ensure that the source task you are trying to assign is valid and active. You can do this by checking the task's status in the task management area.
  Review Task Compatibility: Verify that the source task is compatible with the target task. Check the documentation or configuration settings to ensure that the tasks can be linked.
  Correct Configuration: If there are configuration settings that prevent the assignment, you may need to adjust these settings or consult with your SAP administrator.
  Avoid Circular Dependencies: Ensure that the assignment does not create circular dependencies. Review the task flow to confirm that it is logical and does not loop back on itself.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on task assignments in your version of SAP.
  
  Related Information:
  
  Transaction Codes: You may need to use specific transaction codes (like RSPC for process chains) to manage tasks and check their statuses.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  User Roles and Permissions: Ensure that you have the necessary permissions to assign tasks. Sometimes, user roles can restrict certain actions.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP community forums for additional insights.