How To Fix WL307 - End parallel branches: &2 of &3 necessary branches completed

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 307

• Message text: End parallel branches: &2 of &3 necessary branches completed

What causes this issue?

The fork is completed when all &V3& required branches are completed or
the terminating condition is fulfilled (if applicable).
Terminating condition here: '&V4&'.

System Response

If the result of the step is "true", the above condition was fulfilled
and the workflow was continued after the fork. Otherwise, the system
continues to wait for the number of required branches or until one
branch fulfills the terminating condition.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WL307 - End parallel branches: &2 of &3 necessary branches completed ?

  The SAP error message WL307, which states "End parallel branches: &2 of &3 necessary branches completed," typically occurs in the context of workflow processing. This message indicates that a parallel workflow branch has completed a certain number of tasks, but not all required branches have finished yet.
  Cause:
  The error arises when a workflow is designed to run multiple branches in parallel, and the system is waiting for all branches to complete before proceeding. The message indicates that while some branches have completed, not all necessary branches have finished their tasks. This can happen due to:
  
  Long-running tasks: Some branches may have tasks that take longer to complete.
  Errors in branches: One or more branches may have encountered an error, preventing them from completing.
  Workflow design issues: The workflow may not be designed correctly, leading to branches not being triggered or completed as expected.
  
  Solution:
  To resolve the WL307 error, you can take the following steps:
  
  
  Check Workflow Logs: Review the workflow logs to identify which branches are still running or have failed. This can provide insight into what is causing the delay.
  
  
  Monitor Long-running Tasks: If certain tasks are taking too long, investigate why they are delayed. This could involve checking system performance, database locks, or other issues that might be affecting task execution.
  
  
  Error Handling: If any branches have failed, you will need to address the underlying issues causing the failure. This may involve correcting data, fixing configuration issues, or handling exceptions in the workflow.
  
  
  Adjust Workflow Design: If the workflow design is flawed, consider redesigning it to ensure that all branches can complete successfully. This might involve adding error handling or ensuring that all necessary conditions are met for branches to execute.
  
  
  Re-trigger Workflow: If necessary, you may need to manually re-trigger the workflow or specific branches after resolving any issues.
  
  
  Related Information:
  
  Workflow Monitoring Tools: Use transaction codes like SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Selection - Frequency) to monitor and manage workflow instances.
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error message.
  Documentation: Review SAP documentation on workflow management for best practices in designing and troubleshooting workflows.
  
  By following these steps, you should be able to identify the cause of the WL307 error and implement a solution to resolve it.