Real-time
Two-way sync
Changes in Apollo.io or QuickBooks instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ Accounting and finance
Apollo.io to QuickBooks integration — real-time, two-way sync
Keep Apollo.io and QuickBooks 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 Apollo.io and QuickBooks
Sync customers, invoices, and payment status between QuickBooks 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. QuickBooks 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 Journal entries, Estimates, Purchase orders, Credit memos in QuickBooks 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 Create QuickBooks invoices automatically from closed-won deals or e-commerce orders.
- 02 Keep customer records consistent between QuickBooks and support or subscription-management tools.
- 03 Land sequence enrollment status and outcomes in a warehouse for outbound performance reporting.
- 04 Deduplicate contacts across Apollo and the CRM by syncing on email as the match key.
Common sync patterns
Payment status on the account
Invoice and payment status from QuickBooks appears on the account in Apollo.io, so reps see overdue balances before they promise the next order.
Billing detail changes flow back
When a contact or address is corrected in Apollo.io, QuickBooks 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.
What you can sync between Apollo.io and QuickBooks
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 | QuickBooks objects | How this pairing syncs | |
|---|---|---|---|
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Accounts The chart of accounts, mirrored so external postings map to the right ledger lines | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. | Vendors Supplier records aligned with purchasing and spend tools | Sequences is specific to Apollo.io and Vendors to QuickBooks — 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. | Items Products and services referenced on invoice and bill lines | Deals (Opportunities) is specific to Apollo.io and Items to QuickBooks — 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. | Journal entries Manual postings exported for consolidated financial reporting | Tasks and calls is specific to Apollo.io and Journal entries to QuickBooks — each maps to any object or custom field on the other side. | |
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | Estimates Quotes that convert to invoices, synced with CRM quoting flows | Custom fields is specific to Apollo.io and Estimates to QuickBooks — 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. | Purchase orders Procurement documents synced with inventory and ordering systems | Contacts is specific to Apollo.io and Purchase orders to QuickBooks — each maps to any object or custom field on the other side. |
How changes propagate between Apollo.io and QuickBooks
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 QuickBooks 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 QuickBooks through its API, with automatic retries and rate-limit backoff.
QuickBooks Apollo.io Sub-second propagation
DetectionQuickBooks pushes changes as they happen — webhook events backed by change data capture. Webhooks for entity change events, plus a Change Data Capture query operation for pull-based deltas.
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.
- QuickBooks: Subject to per-realm API request limits.
What ships with Apollo.io ⇄ QuickBooks
Connect Apollo.io and QuickBooks for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–QuickBooks connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Apollo.io or QuickBooks 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 QuickBooks record.
Observability
Monitoring
Track your Apollo.io ⇄ QuickBooks 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 QuickBooks.
How the Apollo.io and QuickBooks 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
QuickBooks
- Integration surface
- REST API (QuickBooks Online)
- Authentication
- OAuth 2.0
- Change detection
- webhooks for entity change events, plus a Change Data Capture query operation for pull-based deltas
- Capabilities
- read · write · CDC · webhooks
- Rate limits
- subject to per-realm API request limits
How it works
How to connect Apollo.io to QuickBooks — 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 QuickBooks 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
QuickBooks
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Apollo.io and QuickBooks 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 ⇄ QuickBooksCustomers 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 QuickBooksCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Apollo.io and QuickBooks integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and QuickBooks: authenticate both systems, choose the objects to sync (such as Apollo.io's Accounts and Sequences), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
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 QuickBooks: Webhooks for entity change events, plus a Change Data Capture query operation for pull-based deltas. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
-
On the QuickBooks side: Journal entries, Estimates, Purchase orders, Credit memos, plus custom fields where QuickBooks 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 QuickBooks: Payment status on the account; Billing detail changes flow back; Collections with context. Invoice and payment status from QuickBooks appears on the account in Apollo.io, so reps see overdue balances before they promise the next order.
-
Apollo.io: REST API. Authentication: API key (passed in request headers); master keys unlock account-wide endpoints. QuickBooks: REST API (QuickBooks Online). Authentication: OAuth 2.0. 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 398 integrations available for Apollo.io and QuickBooks.
Popular · 4 of 398
No integrations match .
