How To Fix WD356 - This review workflow has no ad-hoc agents to be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 356

• Message text: This review workflow has no ad-hoc agents to be changed

Self-Explanatory Message

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• What is the cause and solution for SAP error message WD356 - This review workflow has no ad-hoc agents to be changed ?

  SAP Error Message:
  
  WD356 - This review workflow has no ad-hoc agents to be changed
  
  Cause:
  This error occurs in SAP Business Workflow or Web Dynpro ABAP applications when you attempt to change or assign ad-hoc agents (users who can perform tasks temporarily) in a review workflow, but the workflow instance currently does not have any ad-hoc agents assigned or available for modification.
  In other words, the workflow step or task you are trying to modify does not support or currently have any ad-hoc agents assigned, so the system cannot proceed with the change.
  
  When does it typically occur?
  
  When trying to reassign or add ad-hoc agents to a workflow step that does not allow ad-hoc agents.
  When the workflow instance is in a state where ad-hoc agents are not defined or have already been removed.
  When the workflow template or task configuration does not support ad-hoc agents.
  
  
  Solution:
  
  
  Check Workflow Configuration:
  
  Verify if the workflow step/task is configured to allow ad-hoc agents.
  Use transaction SWDD (Workflow Builder) to inspect the workflow definition.
  Confirm that the step/task has the "Agents" tab configured to allow ad-hoc agents.
  
  
  
  Check Workflow Instance Status:
  
  Use transaction SWI1 or SWI2_FREQ to find the workflow instance.
  Check if ad-hoc agents were ever assigned or if the task is still active.
  
  
  
  Assign Ad-Hoc Agents Properly:
  
  If the workflow step supports ad-hoc agents, assign them correctly via the standard SAP UI or programmatically.
  If you are trying to change ad-hoc agents via a custom program or user interface, ensure the logic checks for the presence of ad-hoc agents before attempting changes.
  
  
  
  Review User Authorization:
  
  Ensure the user performing the change has the necessary authorizations to modify workflow agents.
  
  
  
  If Ad-Hoc Agents Are Not Needed:
  
  If the workflow step is not designed to have ad-hoc agents, avoid trying to assign or change them.
  
  
  
  
  Additional Information:
  
  Ad-hoc agents in SAP workflows are users who are temporarily assigned to perform a task, different from the default agents determined by the workflow logic.
  This error is a safeguard to prevent inconsistent workflow states.
  Sometimes, this error can appear if the workflow instance is already completed or the task is no longer active.
  For debugging, check the workflow log (transaction SWI1) to see the current agents and task status.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WD356 - This review workflow has no ad-hoc agents to be changed
  
  
  Cause
  Attempt to change ad-hoc agents on a workflow step that has none assigned or allowed
  
  
  Solution
  Verify workflow step configuration, check workflow instance status, assign agents properly
  
  
  Transactions
  SWDD (Workflow Builder), SWI1 (Workflow Log), SWI2_FREQ (Workflow Instances)
  
  
  
  
  If you need further help, please provide details about the workflow, the step/task involved, and how you are trying to change the ad-hoc agents.