Change issue key format to non project specific

Whittingly

Current issue keys have format <project key>-<sequence number>.

We'd like to have the issue keys with format ABC-<sequence number> across all projects, (so the sequence number would be unique across all projects).

Is this possible?

(We are on version, 7.6.)

If not, is there a way to automatically generate this as a new custom field?

Many thanks.

Nic Brough -Adaptavist-

You would need to rewrite the whole of Jira and all the add-ons to do this.  The whole thing is designed for users to readily find issues within projects, and destroying that would mean having to re-write all the places that work on the <project>-<sequence> assumption.

You could write something to fill in a field at creation time, but it's not going to be a lot of use to your users, as they will instinctively use the more functional and useful unique Jira key, and you may have the odd clash if people create issues at certain times or with scripts.  A more reliable option would be to use a field built with <project>-<issue id> as you know that number will always be unique, and incremented.  Although it might be a bit of a pain when moving issues (I'd do it as a scripted field myself, then moving issues won't affect it)