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Workflow failed due to assignee not available

  • Apr 23, 2026 7:23 AM UTC
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Hi everyone,

 

We have a workflow that goes through a lot of approvals, and it takes quite a while to complete as it is complex. One of the members has left the organisation; hence, the workflow is failing, as the system is linked with Azure Active Directory. I have replaced that approver with another, but the existing workflows are still failing. 

I have looked at the delegation settings, but we can only choose “delegate to”; the “from” field is based on the logged-in user.

Is there a way we can fix this?

Thank you :)

2 replies

Simon Muntz
Nintex Partner
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  • Nintex Partner
  • Apr 23, 2026 10:43 PM UTC

Hi Natha,

Make sure Auto Task Delegation is enabled under the Tenant Settings.
Then, use the Nintex API to set Task delegation for the user who has left.
https://developer.nintex.com/docs/nw-api-docs/ref/tasks-v2/operations/create-a-task-autodelegation

If you do not know the usersID to use in the api call, use the get users in tenant API and filter by the user’s email address.
https://developer.nintex.com/docs/nw-api-docs/ref/usermanagement-v1/operations/list-users


The workflows may still fail if the user’s account is deactivated, as they still won’t be found, but it may be worth a shot.

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  • Apr 27, 2026 6:59 AM UTC

Thank you ​@Simon Muntz for your reply. I will have a look your solution. Much appreciated :)

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