require a comment of a field upon a date change

Question

I have script runner and have been looking into the behaviors section.  I am trying to prompt for fields and/or comments when a date has been changed, every time it is changed.  It looks like behaviors can do this but the conditions for the fields are all based on a user.  How do I trigger it if the date has changed?

Vinz_mbz8fx · Answer

I'm looking to do the same thing. What I could find up until now is this entry in the community. However, this is based on a paid subscription of an app extension. Anybody got a clue on how to do this without having to pay for an app?

https://community.atlassian.com/t5/Jira-questions/Require-comment-on-Due-Date-change/qaq-p/727327

Joe Harmon_y3pgen · Answer

So I want to add to this to see if someone else can help.  I know that I can have a screen popup on a transition.  So what I did to try and do this is that I did a transition from a status to itself.  For example the status is "develop".  I did a transition from develop to develop and I called that transition "changed date".  I then setup a field called "reason for slip" that has options to select from a single select field.  I have that on a screen that is tied to this transition.  In the workflow I setup, I have a validator that sets the field to required on transition.  This all works fine when I click on the transition button but I want to trigger the screen when a date is changed.  So I setup some project automation to transition on that field change, but it isn't working.  Thoughts, or ideas?

Joe Harmon_y3pgen · Answer

No I want to prompt for a field when a field is changed.  In this case we have a field called "Changed Due Date".  It is meant to record a slip in a project.  When it is changed I want this new field to show up and be required so that they have to select a reason.