Real-time
Two-way sync
Changes in Apollo.io or SendGrid instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Business productivity
Apollo.io to SendGrid integration — real-time, two-way sync
Keep Apollo.io 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.
- 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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Why teams connect Apollo.io and SendGrid
Sync what happens in SendGrid with the customer records in Apollo.io, 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 Single Sends, Unsubscribe Groups, Email Activity, Contacts in SendGrid to Sequences, Deals (Opportunities), Tasks and calls, Custom fields in Apollo.io with bi-directional, real-time sync. Activity and record changes in SendGrid update the matching contact or account in Apollo.io, and CRM data flows the other way wherever SendGrid can store and use it.
Common use cases
- Keep product-usage attributes from an operational database updated on SendGrid contacts to drive lifecycle segments
- Reconcile transactional email activity with support tickets so agents see what a customer was sent
- Push CRM opportunity stages back into Apollo so reps see pipeline context while sequencing.
- Land sequence enrollment status and outcomes in a warehouse for outbound performance reporting.
Where SendGrid supplies contact or company data
Enriched fields land directly on records in Apollo.io, and refreshes keep them from going stale.
Where SendGrid processes payments
Charges, refunds, and subscription changes appear on the account in Apollo.io, so revenue context lives with the relationship.
Where SendGrid can store CRM context: fields kept current
Owner, lifecycle stage, or account details from Apollo.io sync into SendGrid, so people working there have the context without switching tools.
What you can sync between Apollo.io 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.
| Apollo.io objects | SendGrid objects | |
|---|---|---|
| Deals (Opportunities) Pipeline records that can be read and written to keep Apollo aligned with the CRM of record. | Single Sends One-off marketing campaigns whose stats are read back for reporting. | |
| Tasks and calls Rep activity records synced for activity reporting and coaching workflows. | Unsubscribe Groups Synced with incremental and full sync per the Stacksync docs. | |
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | Email Activity Synced with incremental and full sync per the Stacksync docs. | |
| Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. | Contacts Marketing recipients upserted from CRM or database records, including custom field values. | |
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | List Synced with incremental and full sync per the Stacksync docs. | |
| People (database records) Prospects from Apollo's global database, pulled into downstream systems once enriched or saved. | Segments Query-based contact groups whose membership SendGrid computes from contact fields. |
What ships with Apollo.io ⇄ SendGrid
Connect Apollo.io and SendGrid for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–SendGrid connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Apollo.io 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 Apollo.io or SendGrid record.
Observability
Monitoring
Track your Apollo.io ⇄ SendGrid sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Apollo.io and SendGrid.
How the Apollo.io and SendGrid connectors work
Apollo.io
- Integration surface
- REST API
- Authentication
- API key (passed in request headers); master keys unlock account-wide endpoints
- Change detection
- Polling on updated-at timestamps; webhook callbacks exist only for delivering asynchronous enrichment results, not as a general change-event stream
- Capabilities
- read · write
- Rate limits
- Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls
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 Apollo.io 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 Apollo.io 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.
Apollo.io
connected
SendGrid
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Apollo.io 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 · Apollo.io ⇄ 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.
Apollo.io SendGridCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Apollo.io and SendGrid integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and SendGrid: authenticate both systems, choose the objects to sync (such as Apollo.io's Deals (Opportunities) and Tasks and calls), map fields visually, and changes propagate both ways in milliseconds — no code required.
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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 Apollo.io and SendGrid records are not retained after a sync operation.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Apollo.io and SendGrid connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Apollo.io–SendGrid integration in-house.
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Yes — Stacksync ships production-grade connectors for both Apollo.io 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 Apollo.io: Polling on updated-at timestamps; webhook callbacks exist only for delivering asynchronous enrichment results, not as a general change-event stream. 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: Single Sends, Unsubscribe Groups, Email Activity, Contacts, plus custom fields where SendGrid exposes them. On the Apollo.io side: Sequences, Deals (Opportunities), Tasks and calls, Custom fields. Stacksync auto-detects both schemas and converts types between the two systems.
SECURITY
Security teams love 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
CSA STAR
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 386 integrations available for Apollo.io and SendGrid.
Popular · 8 of 386
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Apollo.io ⇄ Lusha -
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Apollo.io ⇄ Microsoft Dynamics 365 -
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SendGrid ⇄ Infor CRM -
SendGrid ⇄ Insightly -
SendGrid ⇄ Intercom -
SendGrid ⇄ Kommo
No integrations match .
