If your situation allows, consider avoiding a project key rename.
If you change an existing project's key, the old key won't be re-usable again when creating new Jira projects. The only way to free up the key would be to delete the project.
Knowing that, if you have the option of creating a new project with the desired key, then moving issues to the new project, consider that.
p.s. Also, if the new project is a Service Desk project, it would have its own unique service desk portal ID, like so YOURDOMAIN.atlassian.net/servicedesk/customer/portal/45 - if you haven't publicized the portal URL, then this won't be a big deal.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.