Real-time
Two-way sync
Changes in Kommo or Kustomer instantly reflect in both systems. No stale data, no manual imports.
CRM
Kommo to Kustomer integration — real-time, two-way sync
Keep Kommo and Kustomer in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
- SOC 2 and 6 other compliance frameworks
- POC with real engineers in minutes
Adopted by fast-scaling companies moving mission-critical data in real time
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Migrated from MuleSoft
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Migrated from Celigo
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Migrated from Matillion
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect Kommo and Kustomer
Run Kommo and Kustomer side by side with the same accounts and contacts in both, whether they serve different teams or one is replacing the other.
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 Pipelines & Statuses, Tasks, Notes, Custom Fields in Kommo with Custom Objects (Klasses), Users, Teams, Tags in Kustomer 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.
Common use cases
- 01 Push web form and product signups into Kommo pipelines as they are submitted so messenger-based follow-up starts quickly
- 02 Keep customer records consistent between Kommo and invoicing or ERP systems
- 03 Sync customers bi-directionally with the CRM and ERP so agents see deal, billing, and subscription context on the timeline
- 04 Push order and shipment records from commerce systems into Kustomer custom objects so agents answer order-status questions without switching tools
Common sync patterns
Divisional or regional split
Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
Where both track pipeline: deal visibility across systems
Deal stage and value on shared accounts stay visible from either CRM.
Post-acquisition consolidation
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
What you can sync between Kommo and Kustomer
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.
| Kommo objects | Kustomer objects | How this pairing syncs | |
|---|---|---|---|
| Companies Organization records map to accounts in ERPs and invoicing tools. | Companies Organization records group customers and map to CRM accounts. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. Custom fields on either side are included in the mapping. | |
| Notes Free-text and system notes attach context to synced leads and contacts. | Notes Internal annotations carry context alongside synced conversations. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Users Account users map lead ownership to people in other systems. | Users Agent records map conversation ownership to people in other systems. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Tasks Follow-up records keep rep activity consistent across systems. | Conversations Support threads across channels sync outward for analytics and CRM context. | Tasks is specific to Kommo and Conversations to Kustomer — each maps to any object or custom field on the other side. | |
| Custom Fields Per-entity custom fields hold data written from external databases and enrichment. | Messages Individual messages within conversations support full-thread replication. | Custom Fields is specific to Kommo and Messages to Kustomer — each maps to any object or custom field on the other side. | |
| Chats Messenger conversations from WhatsApp, Instagram, and other channels attach to leads and contacts. | Custom Objects (Klasses) Structured external records such as orders and subscriptions synced in to appear on the customer timeline. | Chats is specific to Kommo and Custom Objects (Klasses) to Kustomer — each maps to any object or custom field on the other side. |
How changes propagate between Kommo and Kustomer
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
Kommo Kustomer Sub-second propagation
DetectionKommo notifies Stacksync of record changes through webhook events. Webhooks on record add and update events, plus polling for backfill.
DeliveryEach detected change is written to Kustomer through its API, with automatic retries and rate-limit backoff.
Kustomer Kommo Sub-second propagation
DetectionKustomer notifies Stacksync of record changes through webhook events. Outbound webhooks on record events, plus polling for backfill.
DeliveryEach detected change is written to Kommo through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Kommo: Subject to per-account request rate limits.
- Kustomer: Subject to the platform's API rate limits.
What ships with Kommo ⇄ Kustomer
Connect Kommo and Kustomer for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Kommo–Kustomer connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Kommo or Kustomer data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Kommo or Kustomer record.
Observability
Monitoring
Track your Kommo ⇄ Kustomer sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Kommo and Kustomer.
How the Kommo and Kustomer connectors work
Kommo
- Integration surface
- REST API
- Authentication
- OAuth 2.0 with refresh tokens
- Change detection
- Webhooks on record add and update events, plus polling for backfill
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to per-account request rate limits
Kustomer
- Integration surface
- REST API
- Authentication
- API key used as a bearer token, scoped by role
- Change detection
- Outbound webhooks on record events, plus polling for backfill
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's API rate limits
How it works
How to connect Kommo to Kustomer — three steps, no code
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.
- 01
Connect your apps
Authenticate Kommo and Kustomer with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Kommo
connected
Kustomer
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Kommo and Kustomer 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.
objects · Kommo ⇄ KustomerCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Kommo KustomerCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Kommo and Kustomer integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Kommo and Kustomer: authenticate both systems, choose the objects to sync (such as Kommo's Companies and Notes), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Change detection on Kommo: Webhooks on record add and update events, plus polling for backfill. On Kustomer: Outbound webhooks on record events, plus polling for backfill. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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On the Kommo side: Pipelines & Statuses, Tasks, Notes, Custom Fields, plus custom fields where Kommo exposes them. On the Kustomer side: Custom Objects (Klasses), Users, Teams, Tags. Stacksync auto-detects both schemas and converts types between the two systems.
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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.
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Common patterns for Kommo and Kustomer: 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.
-
Kommo: REST API. Authentication: OAuth 2.0 with refresh tokens. Kustomer: REST API. Authentication: API key used as a bearer token, scoped by role. Stacksync manages authentication, retries, and rate limits on both sides.
SECURITY
Security teams trust Stacksync
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.
SOC 2 Type II
ISO 27001
HIPAA BAA
GDPR
CCPA
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Related integrations
Every pair below is a real-time, two-way sync. Search all 430 integrations available for Kommo and Kustomer.
Popular · 6 of 430
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Kommo ⇄ Freshworks CRM -
Kommo ⇄ Gladly -
Kommo ⇄ Gorgias -
Kommo ⇄ Infor CRM -
Kustomer ⇄ Freshsales - Kustomer ⇄ Freshworks CRM
No integrations match .
