I don't know what you mean by "when ticket responsible gets disabled". Can you provide more details on what that means?
It is possible to use Automation Rules to automatically set the Assignee field for issues, but I'm not sure if the rules can accommodate the condition you mention until you provide more info about what that means.
👋 Hi there Jira Community! A few months ago we shared with you plans around renaming epics in your company-managed projects. As part of these changes, we highlighted upcoming changes to epics on...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event