How To Fix WD355 - Workflow completed or has errors; ad hoc extension not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 355

• Message text: Workflow completed or has errors; ad hoc extension not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WD355 - Workflow completed or has errors; ad hoc extension not possible ?

  Certainly! Here's a detailed explanation regarding the SAP error message:
  
  SAP Error Message:
  WD355 Workflow completed or has errors; ad hoc extension not possible
  
  Cause:
  This error occurs when you try to perform an ad hoc extension (i.e., adding an additional step or task manually to a workflow instance) on a workflow that is either:
  
  Already completed, or  
  Has encountered errors and is in an inconsistent or terminated state
  
  In SAP Business Workflow, once a workflow instance is completed or terminated due to errors, it is no longer possible to extend it with additional tasks or steps. The system prevents ad hoc extensions to maintain workflow integrity and consistency.
  
  Explanation:
  
  Ad hoc extension is a feature that allows users or administrators to add new steps to a running workflow instance dynamically.
  This feature is only available for active and running workflow instances.
  If the workflow instance is completed (successfully finished) or terminated (due to errors or manual termination), the system blocks any further modifications.
  Attempting to add an ad hoc extension in such a state triggers the WD355 error.
  
  
  Solution:
  
  
  Check Workflow Status:
  
  Use transaction SWI1 or SWI2_FREQ to check the status of the workflow instance.
  Confirm if the workflow is completed or terminated.
  
  
  
  If Workflow is Completed:
  
  You cannot extend it.  
  Consider starting a new workflow instance if additional processing is required.
  
  
  
  If Workflow has Errors:
  
  Analyze the error using transaction SWI2_DIAG or SWI6.
  Fix the root cause of the error (e.g., missing data, authorization issues, system errors).
  If possible, restart or restart the workflow instance after correction.
  Only after the workflow is active and running can you perform ad hoc extensions.
  
  
  
  Alternative Approach:
  
  If you need to add steps to a completed workflow, consider designing the workflow to include optional or conditional steps that can be triggered dynamically.
  Or, create a new workflow instance that continues the process.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SWI1 – Workflow log display
  SWI2_FREQ – Workflow instances by status
  SWI2_DIAG – Workflow error analysis
  SWI6 – Workflow inbox
  
  
  
  SAP Notes:
  
  Check SAP Notes related to workflow ad hoc extensions and error handling for your specific SAP version.
  
  
  
  Workflow Concepts:
  
  Understand the lifecycle of a workflow instance: Created ? Running ? Completed/Terminated.
  Ad hoc extensions are only valid during the Running phase.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Attempt to add ad hoc extension to a completed or error-terminated workflow instance.
  
  
  Effect
  System throws WD355 error, blocking the extension.
  
  
  Solution
  Verify workflow status; fix errors if any; only extend running workflows; start new instance if needed.
  
  
  Related Transactions
  SWI1, SWI2_FREQ, SWI2_DIAG, SWI6
  
  
  
  
  If you need further assistance with a specific workflow or scenario, please provide the workflow ID or context, and I can help you analyze it in more detail.