The way this would be done natively within JIRA would be via a Postfunction, however, there is not a post function in JIRA to add a watcher or update that particular field. In light of this you would need to use an add-on like ScriptRunner or Bob Swift's Update on Transition for JIRA.
Get ready! Demo Den Episode 4 is coming your way on Tuesday, May 28, 2018 with a Continuous Integration and Delivery special demo. CircleCI Director of Solutions Engineering, Eddie Webb will show us ...
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