Real-time
Two-way sync
Changes in Kommo or Resend instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Business productivity
Kommo to Resend integration — real-time, two-way sync
Keep Kommo and Resend 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
Case study
Migrated from MuleSoft
Case study
Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
Case study
Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Kommo and Resend
Sync what happens in Resend with the customer records in Kommo, in real time and in both directions.
The CRM is supposed to be the record of every customer relationship, but customer-relevant information also accumulates in the other tools a team runs. Whatever Resend holds or produces that touches a customer, whether conversations, payments, replies, enriched data, or notes, the CRM only benefits if it arrives without someone copying it over.
Stacksync connects API keys, Emails, Contacts, Audiences in Resend to Pipelines & Statuses, Tasks, Notes, Custom Fields in Kommo with bi-directional, real-time sync. Activity and record changes in Resend update the matching contact or account in Kommo, and CRM data flows the other way wherever Resend can store and use it.
Common use cases
- 01 Sync CRM contact segments into Resend Audiences so lifecycle broadcasts target current data.
- 02 Write delivery, bounce, and complaint events back to the CRM or a Postgres table for deliverability reporting.
- 03 Keep customer records consistent between Kommo and invoicing or ERP systems
- 04 Mirror pipeline stage changes into BI tools for forecasting
Common sync patterns
Where Resend runs outreach
Prospects, sends, and replies sync into Kommo, keeping lead status current without manual imports.
Where Resend supplies contact or company data
Enriched fields land directly on records in Kommo, and refreshes keep them from going stale.
Where Resend can store CRM context: fields kept current
Owner, lifecycle stage, or account details from Kommo sync into Resend, so people working there have the context without switching tools.
What you can sync between Kommo and Resend
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 | Resend objects | How this pairing syncs | |
|---|---|---|---|
| Contacts Person records sync with other CRMs and databases for a shared contact file. | Contacts Recipient records with email, name, and subscription state, synced from CRMs or databases. | 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. | API keys Scoped credentials managed per environment for send and read access. | Users is specific to Kommo and API keys to Resend — 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. | Emails Sent messages retrievable by ID with current delivery status. | Chats is specific to Kommo and Emails to Resend — each maps to any object or custom field on the other side. | |
| Leads The central pipeline record; external signups and form fills sync in as leads. | Audiences Named contact lists that broadcasts target; typically mirrored from CRM segments. | Leads is specific to Kommo and Audiences to Resend — each maps to any object or custom field on the other side. | |
| Companies Organization records map to accounts in ERPs and invoicing tools. | Broadcasts One-to-many campaign sends addressed to an audience. | Companies is specific to Kommo and Broadcasts to Resend — each maps to any object or custom field on the other side. | |
| Pipelines & Statuses Stage definitions structure lead progress and drive stage-change syncs to reporting tools. | Domains Verified sending domains with DNS and DKIM status. | Pipelines & Statuses is specific to Kommo and Domains to Resend — each maps to any object or custom field on the other side. |
How changes propagate between Kommo and Resend
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 Resend 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 Resend through its API, with automatic retries and rate-limit backoff.
Resend Kommo Sub-second propagation
DetectionResend notifies Stacksync of record changes through webhook events. Webhooks for email lifecycle events.
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.
What ships with Kommo ⇄ Resend
Connect Kommo and Resend for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Kommo–Resend connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Kommo or Resend 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 Resend record.
Observability
Monitoring
Track your Kommo ⇄ Resend 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 Resend.
How the Kommo and Resend 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
Resend
- Integration surface
- REST API
- Authentication
- API key (Bearer token)
- Change detection
- Webhooks for email lifecycle events; polling for contact and audience state
- Capabilities
- read · write · webhooks
How it works
How to connect Kommo to Resend — 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 Resend 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
Resend
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Kommo and Resend 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 ⇄ ResendCustomers 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 ResendCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Kommo and Resend integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Kommo and Resend: authenticate both systems, choose the objects to sync (such as Kommo's Contacts and Users), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Kommo and Resend records are not retained after a sync operation.
-
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Kommo and Resend connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Kommo–Resend integration in-house.
-
Yes — Stacksync ships production-grade connectors for both Kommo and Resend. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
-
Change detection on Kommo: Webhooks on record add and update events, plus polling for backfill. On Resend: Webhooks for email lifecycle events; polling for contact and audience state. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
-
On the Resend side: API keys, Emails, Contacts, Audiences, plus custom fields where Resend exposes them. On the Kommo side: Pipelines & Statuses, Tasks, Notes, Custom Fields. Stacksync auto-detects both schemas and converts types between the two systems.
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 407 integrations available for Kommo and Resend.
Popular · 7 of 407
-
Kommo ⇄ Adobe Sign -
Kommo ⇄ Asana -
Kommo ⇄ Docusign -
Kommo ⇄ Gatekeeper -
Resend ⇄ Infor CRM -
Resend ⇄ Insightly -
Resend ⇄ Intercom
No integrations match .
