Prevent Transition if Blocker not complete

[Trevor Hunt]

Is there a way to prevent a jira issue transition from happening if all blockers aren't cleared?

[Jobin Kuruvilla [Adaptavist] · Accepted solution]

Not by default. You will have to write a custom workflow validator to check for blocker issues.

[Trevor Hunt]

Any experience with doing something like this with Script Runner?

[Bob Swift OSS (Bob Swift Atlassian Apps)]

You can do this with a Conditioned validator configured with the appropriate JQL.