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

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

On the Outreach side: Mailings, Calls, Tasks, Opportunities, plus custom fields where Outreach exposes them. On the Elasticsearch side: Index templates, Indices, Documents, Index mappings. 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 Elasticsearch and Outreach: Query the CRM like a database; Product events onto CRM records; Internal tools without API code. Accounts, contacts, and custom objects from Outreach become tables in Elasticsearch you can join with application data directly.

Elasticsearch: REST API (JSON over HTTP). Authentication: API keys or basic authentication; Elastic Cloud also issues service account tokens. Outreach: REST API conforming to the JSON:API specification. Authentication: OAuth 2.0. Stacksync manages authentication, retries, and rate limits on both sides.

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. Elasticsearch: Writes are addressed by document _id, so upserts map directly onto the index API, and the _bulk endpoint batches many operations in a single request. Stacksync's field mapping accounts for these differences between Elasticsearch and Outreach without custom code.