Real-time
Two-way sync
Changes in Apollo.io or Rillet instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Accounting and finance
Apollo.io to Rillet integration — real-time, two-way sync
Keep Apollo.io and Rillet 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 Rillet
Sync customers, invoices, and payment status between Rillet and Apollo.io in real time, so sales sees the money and finance sees the relationship.
Finance and sales describe the same customers in different systems. Apollo.io knows the relationship: who the contacts are and what is in motion with the account. Rillet knows the money: what was invoiced, what was paid, what is overdue. When the two are connected only by exports, each side works partly blind.
Stacksync links Charge, Reimbursement, Custom Field, Account in Rillet to People (database records), Sequences, Deals (Opportunities), Tasks and calls in Apollo.io with bi-directional, real-time sync. New customers, updated billing details, invoice status, and payment activity move in whichever direction you configure, field by field, with conflicts resolved by rules you set. The result is one version of each customer, visible from both sides.
Common use cases
- 01 Mirror journal entries and contract revenue data into a warehouse for board and ARR reporting.
- 02 Push billing events from a product or usage-metering system into Rillet for revenue recognition.
- 03 Deduplicate contacts across Apollo and the CRM by syncing on email as the match key.
- 04 Push CRM opportunity stages back into Apollo so reps see pipeline context while sequencing.
Common sync patterns
Billing detail changes flow back
When a contact or address is corrected in Apollo.io, Rillet gets the update before the next invoice goes out.
Collections with context
Finance sees the account owner and relationship history from Apollo.io when chasing a balance, and sales sees that the chase is happening.
Where Apollo.io tracks deals: closed-won creates the finance record
A won opportunity creates or updates the customer in Rillet with the right billing details, so invoicing starts without re-keying.
What you can sync between Apollo.io and Rillet
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 | Rillet objects | How this pairing syncs | |
|---|---|---|---|
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Account Synced with incremental and full sync per the Stacksync docs. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | Custom Field Synced with incremental and full sync per the Stacksync docs. | 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. | |
| Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. | Bill Synced with incremental and full sync per the Stacksync docs. | Sequences is specific to Apollo.io and Bill to Rillet — each maps to any object or custom field on the other side. | |
| Deals (Opportunities) Pipeline records that can be read and written to keep Apollo aligned with the CRM of record. | Journal Entry Synced with incremental and full sync per the Stacksync docs. | Deals (Opportunities) is specific to Apollo.io and Journal Entry to Rillet — each maps to any object or custom field on the other side. | |
| Tasks and calls Rep activity records synced for activity reporting and coaching workflows. | Invoice Payment Synced with incremental and full sync per the Stacksync docs. | Tasks and calls is specific to Apollo.io and Invoice Payment to Rillet — each maps to any object or custom field on the other side. | |
| Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. | Charge Synced with incremental and full sync per the Stacksync docs. | Contacts is specific to Apollo.io and Charge to Rillet — each maps to any object or custom field on the other side. |
How changes propagate between Apollo.io and Rillet
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.
Apollo.io Rillet Interval-based propagation
DetectionStacksync polls Apollo.io for changes on an incremental schedule, reading only records changed since the previous pass. Polling on updated-at timestamps.
DeliveryEach detected change is written to Rillet through its API, with automatic retries and rate-limit backoff.
Rillet Apollo.io Sub-second propagation
DetectionRillet pushes changes as they happen — webhook events backed by change data capture. Near real-time updates via change tracking.
DeliveryEach detected change is written to Apollo.io through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Apollo.io: Rate limits and enrichment credits vary by plan; bulk endpoints are throttled separately from single-record calls.
- Rillet: Subject to the platform's API rate limits.
What ships with Apollo.io ⇄ Rillet
Connect Apollo.io and Rillet for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–Rillet connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Apollo.io or Rillet 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 Rillet record.
Observability
Monitoring
Track your Apollo.io ⇄ Rillet 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 Rillet.
How the Apollo.io and Rillet 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
Rillet
- Integration surface
- REST API (OpenAPI-specified, with production and sandbox environments)
- Authentication
- API key generated in Rillet (Organization Setting -> API Access); uncheck Read Only for bidirectional sync, check Read Only for one-way sync
- Change detection
- Near real-time updates via change tracking; incremental sync per object, with delete detection (some objects checked every 1h or 4h)
- Capabilities
- read · write · CDC · webhooks
- Rate limits
- Subject to the platform's API rate limits.
How it works
How to connect Apollo.io to Rillet — 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 Rillet 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
Rillet
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Apollo.io and Rillet 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 ⇄ RilletCustomers 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 RilletCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Apollo.io and Rillet integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and Rillet: authenticate both systems, choose the objects to sync (such as Apollo.io's Accounts and Custom fields), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
On the Rillet side: Charge, Reimbursement, Custom Field, Account, plus custom fields where Rillet exposes them. On the Apollo.io side: People (database records), Sequences, Deals (Opportunities), Tasks and calls. 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 Apollo.io and Rillet: Billing detail changes flow back; Collections with context; Where Apollo.io tracks deals: closed-won creates the finance record. When a contact or address is corrected in Apollo.io, Rillet gets the update before the next invoice goes out.
-
Apollo.io: REST API. Authentication: API key (passed in request headers); master keys unlock account-wide endpoints. Rillet: REST API (OpenAPI-specified, with production and sandbox environments). Authentication: API key generated in Rillet (Organization Setting -> API Access); uncheck Read Only for bidirectional sync, check Read Only for one-way sync. Stacksync manages authentication, retries, and rate limits on both sides.
-
Rillet: The REST API authenticates with API keys and publishes an OpenAPI specification, with separate production and sandbox environments. Apollo.io: Enrichment endpoints consume plan credits, so sync jobs that trigger enrichment have a cost dimension beyond rate limits. Stacksync's field mapping accounts for these differences between Apollo.io and Rillet without custom code.
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:
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