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Support Article

Invalid page error when trying to wrap up Interaction flow



An error occurs when wrapping up an Interaction flow using a ticket.

Error Messages

Trying to save an invalid page: ** trying to calculate the handle of an instance without a pxObjClass property

Steps to Reproduce

User 1:
  1. Create a new Interaction using 'Log other contact'.
  2. Click Submit to access the Interaction driver.
  3. Select Wrap Up.
  4. Change the dropdown to route item.
  5. Route to a workbasket and select 'Return to me'.
  6. Click submit.
User 2:
  1. Retrieve the work item from the workbasket.
  2. Perform a wrap up.

Root Cause

An issue in the custom application code or rules: Classless newAssignPage is present.

When the flow processing ends, the flow available is cleaned up to start a new flow. The RemoveAssignmentByTicket is used to perform this cleanup activity. The RemoveAssignmentByTicket function invoked the FindAssignment function to check the availability of the newAssignPage. The classless newAssignPage caused the issue.


Perform the following local-change:

Remove the classless newAssignPage before setting the ticket.


Published October 13, 2018 - Updated December 2, 2021

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