We will soon be partnering as a re-seller for another application. My organisation will be providing level 1 support however we will need to triage more complex issues directly to our partner vendor. The partner also leverages Zendesk. We are looking for a way to auto-sync tickets so that our customers only have to deal with 1 ticket. Essentially the workflow we are looking for is:

1. Customer logs ticket with us - Ticket A
2. If we need our partner to resolve the issue, they need a ticket (Ticket B) in their instance of Zendesk
3. Customer should only be communicating with us and/or the partner via Ticket A, both tickets A & B need to be updated with the same updates
4. When issue is resolved both Ticket A and Ticket B need to set to solved.