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Support Article

Unable to update user stories



When updating a User Story using the Edit button, a Commit error displays on the Edit popup screen.

Error Messages

UI error: pyCommitError:A commit cannot be performed because a deferred delete of an instance of class Assign- failed: code: <none> SQLState: <none> Message: <none>

Tracer error, Activity: PMReassign, Error at Step:6 It is trying to open the instance using key: Unable to open an instance using the given inputs: ASSIGN-WORKBASKET PEGAPROJMGMT-WORK US-85!IDEA

Steps to Reproduce

  1. Open any existing User Story.
  2. Click the Edit button.
  3. Change any content in the User Story.
  4. Click the Submit button.

Root Cause

A defect or configuration issue in the operating environment.
Assignments were deleted from the pc_assign_worklist and pc_assign_workbasket tables in the user's environment which lead to the failure. The failure User Stories were last updated by the Pega-ProCom.ServiceLevelEvents agent. However, no SLA was defined for these User Stories.


Perform the following local-change:

Restore the deleted assignments in the pc_assign_worklist and pc_assign_workbasket tables.

Published August 15, 2019 - Updated December 2, 2021

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