The Set Ticket Field action allows to update an arbitrary field of a ticket to a new value. Multiple ticket field values can be set in a batch, using multiple Set Ticket Field in the same task. An example of this action is given with the Task Planner template Changes the subject for highest-priority tickets.

Date values, such as the Deadline, are set relative to the timestamp the task is run. Instead of absolute values, the user selects a number of minutes, hours, days, weeks or months. Negative numbers will result in dates in the past.

Leaving the value of a ticket field empty will remove the current value from the ticket.