How To Fix WZ344 - You cannot complete work item &1 for user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WZ - Workflow: Model objects

• Message number: 344

• Message text: You cannot complete work item &1 for user &2

What causes this issue?

You tried to complete work item <(>&<)>1 for user <(>&<)>2, but you do
not have authorization for authorization object S_WF_WI (WI_TYPE = 'W',
TASK_CLASS = <(><<)>task class of the task underlying the work item>,
WFACTVT = '13').

System Response

The system prevents the completion.

How to fix this error?

Please obtain the required authorization from your workflow system
administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WZ344 - You cannot complete work item &1 for user &2 ?

  SAP Error Message:
  WZ344 – "You cannot complete work item &1 for user &2"
  
  
  Cause:
  This error occurs when a user attempts to complete or process a workflow work item that is not assigned to them or for which they do not have the necessary authorization. Specifically, the work item is intended for a different user (&2), and the current user (&2) is not permitted to complete it.
  Common scenarios include:  
  
  The work item is assigned to another user, and the current user tries to complete it directly.  
  The user lacks the required authorization to act on behalf of the assigned user.  
  The workflow container or task assignment is incorrectly configured, causing assignment mismatches.
  
  
  
  Solution:
  
  
  Verify Work Item Ownership:
  Check who the work item is assigned to. Only the assigned user or an authorized substitute can complete the work item.
  
  
  Use Substitute or Delegate Functionality:
  If you need to complete the work item on behalf of