How can you configure Confiforms IFTTT Integration rule to run only once?

Question

I am using the ConfiForm IFTTT Integration Rule to create a JIRA sub-task.  I would only like this integration rule to run the first time the criteria is met.  If I change my entries for this specific field multiple times, I don't want duplicate sub-tasks to be created when the criteria is met multiple times.  How can I achieve this?

fbunting · Answer

You could add another field to track this. Change your original IFTTT (with the original criteria) to set a checkbox field to true (instead of creating the Jira ticket).  Then a second IFTTT that tracks when this checkbox field changes (hasChanged) to true, and then it creates the Jira ticket.

Alex Medved _ConfiForms_ · Answer

You can track the transition (of certain field's value) with hasChanged virtual function