You can use Backbone to synchronize JIRA Service Desk projects with both other JIRA Service Desk projects, and normal JIRA projects.
Backbone officially supports JIRA Service Desk integration in these main scenarios:
- 2nd Level Support (Jira Service Desk <> Jira)
- 2nd Level Support (Jira Service Desk <> Jira Service Desk)
- Mirroring (same-level support)
- Power Customer Support