Real-time
Two-way sync
Changes in Intercom or SendGrid instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Business productivity
Intercom to SendGrid integration — real-time, two-way sync
Keep Intercom and SendGrid in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
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Adopted by fast-scaling companies moving mission-critical data in real time
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Why teams connect Intercom and SendGrid
Sync what happens in SendGrid with the customer records in Intercom, 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 SendGrid 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 Segments, Categories, Senders, Single Sends in SendGrid to Data Events, Custom Data Attributes, Tags, Segments in Intercom with bi-directional, real-time sync. Activity and record changes in SendGrid update the matching contact or account in Intercom, and CRM data flows the other way wherever SendGrid can store and use it.
Common use cases
- 01 Stream Event Webhook engagement data into a Postgres database or warehouse for campaign and deliverability reporting
- 02 Keep product-usage attributes from an operational database updated on SendGrid contacts to drive lifecycle segments
- 03 Keep custom data attributes updated from billing or ERP systems so message segments reflect current plan and spend
- 04 Route qualified leads from Intercom conversations into the CRM as leads or opportunities in near real time
Common sync patterns
Where SendGrid supplies contact or company data
Enriched fields land directly on records in Intercom, and refreshes keep them from going stale.
Where SendGrid processes payments
Charges, refunds, and subscription changes appear on the account in Intercom, so revenue context lives with the relationship.
Where SendGrid can store CRM context: fields kept current
Owner, lifecycle stage, or account details from Intercom sync into SendGrid, so people working there have the context without switching tools.
What you can sync between Intercom and SendGrid
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.
| Intercom objects | SendGrid objects | How this pairing syncs | |
|---|---|---|---|
| Contacts A single contact model covers both users and leads, distinguished by a role attribute. | Contacts Marketing recipients upserted from CRM or database records, including custom field values. | 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. | |
| Segments Saved audience definitions are readable for targeting parity across tools. | Segments Query-based contact groups whose membership SendGrid computes from contact fields. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Companies Company records group contacts and carry plan and account attributes used in segmentation. | Email Activity Synced with incremental and full sync per the Stacksync docs. | Companies is specific to Intercom and Email Activity to SendGrid — each maps to any object or custom field on the other side. | |
| Conversations Support and sales threads sync outward for analytics and CRM context. | List Synced with incremental and full sync per the Stacksync docs. | Conversations is specific to Intercom and List to SendGrid — each maps to any object or custom field on the other side. | |
| Tickets Structured ticket records track issues alongside conversational threads. | Categories Synced with incremental and full sync per the Stacksync docs. | Tickets is specific to Intercom and Categories to SendGrid — each maps to any object or custom field on the other side. | |
| Data Events Behavioral events pushed in from product databases trigger messages and flows. | Senders Synced with incremental and full sync per the Stacksync docs. | Data Events is specific to Intercom and Senders to SendGrid — each maps to any object or custom field on the other side. |
How changes propagate between Intercom and SendGrid
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.
Intercom SendGrid Sub-second propagation
DetectionIntercom notifies Stacksync of record changes through webhook events. Webhook topic subscriptions for contact, company, and conversation events, plus polling for backfill.
DeliveryEach detected change is written to SendGrid through its API, with automatic retries and rate-limit backoff.
SendGrid Intercom Sub-second propagation
DetectionSendGrid notifies Stacksync of record changes through webhook events. Event Webhook posts delivery and engagement events (processed, delivered, open, click, bounce, spam report) to an HTTP endpoint.
DeliveryEach detected change is written to Intercom through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Intercom: Subject to per-app rate limits on the Intercom API.
- SendGrid: Subject to the platform's API rate limits; contact upserts are batched, asynchronous jobs rather than per-row writes.
What ships with Intercom ⇄ SendGrid
Connect Intercom and SendGrid for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Intercom–SendGrid connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Intercom or SendGrid 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 Intercom or SendGrid record.
Observability
Monitoring
Track your Intercom ⇄ SendGrid sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Intercom and SendGrid.
How the Intercom and SendGrid connectors work
Intercom
- Integration surface
- REST API
- Authentication
- OAuth 2.0 for public apps or a workspace access token
- Change detection
- Webhook topic subscriptions for contact, company, and conversation events, plus polling for backfill
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to per-app rate limits on the Intercom API
SendGrid
- Integration surface
- REST API (v3)
- Authentication
- API key (create in SendGrid Settings > API Keys with Custom Access / Full Access for the objects to sync; key begins with "SG")
- Change detection
- Event Webhook posts delivery and engagement events (processed, delivered, open, click, bounce, spam report) to an HTTP endpoint; contact and list changes are detected by polling
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's API rate limits; contact upserts are batched, asynchronous jobs rather than per-row writes
How it works
How to connect Intercom to SendGrid — 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 Intercom and SendGrid with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Intercom
connected
SendGrid
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Intercom and SendGrid 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 · Intercom ⇄ SendGridCustomers 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.
Intercom SendGridCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Intercom and SendGrid integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Intercom and SendGrid: authenticate both systems, choose the objects to sync (such as Intercom's Contacts and Segments), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Intercom and SendGrid connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Intercom–SendGrid integration in-house.
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Yes — Stacksync ships production-grade connectors for both Intercom and SendGrid. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Intercom: Webhook topic subscriptions for contact, company, and conversation events, plus polling for backfill. On SendGrid: Event Webhook posts delivery and engagement events (processed, delivered, open, click, bounce, spam report) to an HTTP endpoint; contact and list changes are detected by polling. 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 SendGrid side: Segments, Categories, Senders, Single Sends, plus custom fields where SendGrid exposes them. On the Intercom side: Data Events, Custom Data Attributes, Tags, Segments. 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.
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.
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→ 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:
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