Outreach to Zendesk integration — real-time, two-way sync

Yes. Stacksync provides a managed, real-time two-way integration between Outreach and Zendesk: authenticate both systems, choose the objects to sync (such as Outreach's Mailings and Calls), map fields visually, and changes propagate both ways in milliseconds — no code required.

On the Zendesk side: Ticket Forms, Tickets, Tickets Comments, Users, plus custom fields where Zendesk exposes them. On the Outreach side: Tasks, Opportunities, Users, Mailboxes. Stacksync auto-detects both schemas and converts types between the two systems.

Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.

Common patterns for Outreach and Zendesk: Where Zendesk supplies contact or company data; Where Zendesk can store CRM context: fields kept current; Where Zendesk handles support or shared inboxes. Enriched fields land directly on records in Outreach, and refreshes keep them from going stale.

Outreach: REST API conforming to the JSON:API specification. Authentication: OAuth 2.0. Zendesk: REST API. Authentication: OAuth app authorization: enter your Zendesk subdomain (from {sub_domain_name}.zendesk.com) in Stacksync Connections and click "Authorize App". Stacksync manages authentication, retries, and rate limits on both sides.

Zendesk: Ticket comments cannot be edited after creation, so downstream copies of conversations only ever append. Outreach: Sequence enrollment is modeled as its own resource (sequence states), so adding a prospect to a cadence is a normal record write rather than a special action. Stacksync's field mapping accounts for these differences between Outreach and Zendesk without custom code.