How To Fix WFD_WP1_MSG038 - New worker persistency switch or feature toggle is not activated.

SAP Error Message - Details

• Message type: E = Error

• Message class: WFD_WP1_MSG - Message Class for Worker Integration WP1

• Message number: 038

• Message text: New worker persistency switch or feature toggle is not activated.

Self-Explanatory Message

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• What is the cause and solution for SAP error message WFD_WP1_MSG038 - New worker persistency switch or feature toggle is not activated. ?

  SAP Error Message:
  
  WFD_WP1_MSG038 New worker persistency switch or feature toggle is not activated.
  
  Cause:
  This error occurs because a new feature toggle or switch related to worker persistency in SAP Workflow Management (WFM) or SAP Workflow Foundation (WFD) is not activated in the system. The system expects this feature toggle to be enabled to proceed with certain workflow operations, especially those involving worker assignment persistency or enhanced worker determination logic.
  In other words, the workflow runtime or configuration is trying to use a new persistency mechanism for workflow workers, but the corresponding feature toggle (a switch controlling the activation of new functionality) is still inactive.
  
  Explanation / Background:
  
  Worker persistency refers to the mechanism that ensures the same workflow agent (worker) is consistently assigned to a workflow task instance or across multiple instances, improving task handling consistency.
  SAP often introduces new features behind feature toggles (switches) to allow controlled activation.
  If the workflow or custom code expects the new persistency logic but the toggle is off, this error is raised.
  
  
  Solution:
  
  
  Activate the Feature Toggle / Switch:
  
  Identify the relevant feature toggle or switch controlling the new worker persistency.
  This is typically done via transaction SFW5 (Switch Framework) or via the Activate Business Functions transaction.
  Search for switches related to Workflow Worker Persistency or similar terms.
  Activate the switch and perform necessary system activation steps (may require system restart or user logoff/logon).
  
  
  
  Check SAP Notes / Documentation:
  
  SAP may have released notes or documentation specifying the exact switch name and prerequisites.
  Search SAP Support Portal for notes related to WFD_WP1_MSG038 or "worker persistency switch".
  Follow any additional instructions or prerequisites mentioned.
  
  
  
  Verify Workflow Configuration:
  
  Ensure that the workflow definitions and runtime environment are compatible with the new persistency feature.
  If custom code or enhancements are involved, verify that they handle the new persistency logic correctly.
  
  
  
  Testing:
  
  After activation, test the workflow scenarios that previously caused the error.
  Confirm that worker assignment behaves as expected and no errors occur.
  
  
  
  
  Additional Information:
  
  This error is common when upgrading or patching SAP Workflow components where new features are introduced but not yet activated.
  The feature toggle mechanism allows SAP customers to control the rollout of new features without immediate impact.
  If you do not want to activate the new feature yet, you may need to adjust your workflow or custom code to avoid calling functionality dependent on the new persistency switch.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WFD_WP1_MSG038 New worker persistency switch or feature toggle is not activated.
  
  
  Cause
  New worker persistency feature toggle is inactive but required by workflow runtime.
  
  
  Solution
  Activate the relevant feature toggle via transaction SFW5 or SAP Business Functions.
  
  
  Notes
  Check SAP Notes for exact switch name and prerequisites; test workflows after activation.
  
  
  
  
  If you need the exact name of the switch or further assistance, please provide your SAP system version or check the latest SAP Notes related to workflow persistency features.