the ticket after closing aslo still resolution is unresolved

[Abilash]

one ticket is after closing also still showing the unresolved status,i tried the automation rule it showing the below error.

Edited work item successfully, however some of the set fields aren't available. Fields ignored:

Resolution (resolution)

No fields or field values to edit for work items (could be due to some field values not existing in a given project):

[John Funk]

Hi Abilash,

Tickets are not considered resolved unless the Resolution field is populated. This is most often done by the workflow used by the ticket to set the Resolution field using a Rule on the transition to the final status (Done, Completed, Canceled, etc.). Please update your workflow to add a rule on that transition to set the value of the Resolution field.