Envolved with well-marked process with many teams and integrates tasks, my team had the necessity of some automations to facilitate and speed up the comunication and daily work on Jira Cloud Platform.
We create a script to add on Jira Script Runner "Script Listener" with method "Issue Updated" to create automatically an issue linked copy with same summary (name), type and Epic Link when it reaches specific status on start project keeping a relationship between then.
I hope help you all as helped me and my team! :)