How To Fix SWF_RUN681 - Constructor class '&1' is active

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RUN - Workflow Runtime System

• Message number: 681

• Message text: Constructor class '&1' is active

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_RUN681 - Constructor class '&1' is active ?

  The SAP error message SWF_RUN681 indicates that there is an issue with a constructor class in the workflow runtime environment. Specifically, it suggests that the constructor class specified (denoted by &1) is currently active, which can lead to problems when trying to instantiate or use that class in a workflow.
  Cause:
  
  Active Constructor Class: The constructor class mentioned in the error message is already active in the system. This can happen if the class is being used by another workflow instance or if it has not been properly deactivated after its last use.
  Concurrency Issues: If multiple workflows are trying to access the same constructor class simultaneously, it can lead to conflicts and this error message.
  Configuration Issues: There may be misconfigurations in the workflow settings or the class itself that prevent it from being instantiated correctly.
  
  Solution:
  
  Check Active Instances: Use transaction SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Selection - Frequency) to check if there are any active workflow instances that are using the constructor class. If so, you may need to wait for those instances to complete or terminate them if they are stuck.
  Deactivate the Class: If you have the necessary permissions, you can deactivate the constructor class. This can be done through transaction SE80 (Object Navigator) or SE24 (Class Builder). Make sure to check the implications of deactivating the class on other workflows.
  Review Workflow Configuration: Ensure that the workflow configuration is correct and that there are no issues with the class definition. Check for any recent changes that might have affected the class.
  Check for Locks: Use transaction SM12 to check for any locks on the constructor class. If there are locks, you may need to release them.
  Debugging: If the issue persists, consider debugging the workflow to identify where the problem lies. You can use transaction SWI1 to analyze the workflow logs and see if there are any additional error messages or warnings.
  
  Related Information:
  
  Workflow Monitoring: Use transaction SWI1 or SWI2 to monitor workflow instances and their statuses.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP documentation related to workflow management and constructor classes for more detailed information on how they function and how to manage them.
  
  If the problem continues after trying these solutions, it may be beneficial to consult with your SAP Basis or Workflow team for further assistance.