I have read a few different articles and can see I should be using epic link trigger set to trigger issue however when I try to use that I get an error.
"Unknown fields set during create, they may be unavailable for the project/type. Check your custom field configuration. Fields ignored - Epic Link (customfield_10014)"
I can make it work with subtasks for which there appears to be a specific new action for can anyone please point me in the right direction... Please :-)