You may experience an intermittent 429 error when using the community forums. Thank you for your patience while our team works to investigate and resolve this.
Atlassian Team members are employees working across the company in a wide variety of roles.
December 20, 2018 edited
Hello,
Welcome to Atlassian Community!
Unfortunately, JIRA does not have the functionality to automatically create a story when an Epic is transitioned, however, you can achieve it using some plugins.
My recommendation is to use Automation for JIRA and configure a rule like this: