This is new to me, as I haven't used ServiceDesk.
I tried to re-create your problem, and instead of a simple validator I used a script validator.
After approving a test issue, validator status was still shown as "Has not run yet.", which means JIRA bypasses validators in case of approvals.
So, the answer to your question is No. A workaround may be possible - but there will be compromises.
Although approvals and workflow transitions look visually similar to the end user, JIRA internally organizes approvals in a different way (meta data tags in workflow XML rather than action). I think this gives an indication that conditions and validators won't work here.
What you can do here is, forget approvals feature and create your own transitions called Approve/ Decline. If you have Script Runner add-on you can write a custom validator for 'x number of approvers' feature too.
Hey Atlassian community, I help lead engineering at Sentry, an open-source error-tracking and monitoring tool that integrates with Jira. We started using Jira Software Cloud internally last year, a...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs