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Use case
When an issue is created, sub-tasks for each option selected in the 'Checkbox' custom field are added.
Issue Event
Create a new rule and name it appropriately.
Providing a description will help you to identify what the rule does but this step is optional.
Add a trigger and choose the Issue event → Issue created
No further configuration needed. The automation rule is triggered every time an issue is being transitioned.
Create Issue
Add Action → Create Issue
