Bring tickets, requesters and conversations over from Zendesk.
In Zendesk Admin Center → Apps and integrations → APIs → Zendesk API, enable token access and add a token.
Open Integrations → Import & migrate → Zendesk and enter your subdomain, agent email and API token.
Run Test connection & preview to see a sample and the field mapping — nothing is written yet.
Click Run import. Tickets are idempotent, so you can safely re-run it.