Two-way sync
Changes in Kustomer or Streak CRM instantly reflect in both systems. No stale data, no manual imports.
Keep Kustomer and Streak CRM in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Two CRMs in one company is more common than anyone plans for: an acquisition brings its own system, regions or business units standardize differently, or a migration is under way and both are live. In every case, some of the same companies and people exist in both systems, and every day of manual double entry pushes the copies further apart.
Stacksync syncs Users, Teams, Tags, Notes in Kustomer with Organizations, Tasks, Email threads, Custom fields in Streak CRM in real time and in both directions, with field-level mapping and matching on identifiers you choose. Update a record in either CRM and the other reflects it within seconds.
Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
Deal stage and value on shared accounts stay visible from either CRM.
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Kustomer objects | Streak CRM objects | |
|---|---|---|
| Customers The central record whose timeline aggregates every interaction; external attributes sync onto it. | Custom fields Per-pipeline field definitions that determine what data a box can hold. | |
| Conversations Support threads across channels sync outward for analytics and CRM context. | Pipelines Define the process and the custom field schema that boxes in them carry. | |
| Messages Individual messages within conversations support full-thread replication. | Boxes The core record (a deal, hire, or project) tracked through pipeline stages. | |
| Companies Organization records group customers and map to CRM accounts. | Stages Pipeline steps whose transitions are the usual trigger for downstream syncs. | |
| Custom Objects (Klasses) Structured external records such as orders and subscriptions synced in to appear on the customer timeline. | Contacts People linked to boxes, synced with marketing and support tools. | |
| Users Agent records map conversation ownership to people in other systems. | Organizations Company records associated with contacts and boxes. |
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Kustomer–Streak CRM connection.
Changes in Kustomer or Streak CRM instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Kustomer or Streak CRM data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Kustomer or Streak CRM record.
Track your Kustomer ⇄ Streak CRM sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Kustomer and Streak CRM.
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
Authenticate Kustomer and Streak CRM with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Kustomer and Streak CRM objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Kustomer and Streak CRM: authenticate both systems, choose the objects to sync (such as Kustomer's Customers and Conversations), map fields visually, and changes propagate both ways in milliseconds — no code required.
On the Kustomer side: Users, Teams, Tags, Notes, plus custom fields where Kustomer exposes them. On the Streak CRM side: Organizations, Tasks, Email threads, Custom fields. 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 Kustomer and Streak CRM: Divisional or regional split; Where both track pipeline: deal visibility across systems; Post-acquisition consolidation. Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
Kustomer: REST API. Authentication: API key used as a bearer token, scoped by role. Streak CRM: REST API. Authentication: API key issued per user. Stacksync manages authentication, retries, and rate limits on both sides.
Kustomer: Kustomer's data model centers on a customer timeline: conversations, messages, and custom object records all appear chronologically against one customer record rather than as separate tickets. Streak CRM: Custom fields are defined per pipeline, so two pipelines can have entirely different schemas and sync mappings must be pipeline-aware. Stacksync's field mapping accounts for these differences between Kustomer and Streak CRM without custom code.
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Kustomer and Streak CRM.