Two-way sync
Changes in Apollo.io or Freshsales instantly reflect in both systems. No stale data, no manual imports.
Keep Apollo.io and Freshsales in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Two CRMs in one company is more common than anyone plans for: an acquisition brings its own system, regions or business units standardize differently, or a migration is under way and both are live. In every case, some of the same companies and people exist in both systems, and every day of manual double entry pushes the copies further apart.
Stacksync syncs Custom fields, Contacts, Accounts, People (database records) in Apollo.io with Accounts, Deals, Tasks, Appointments in Freshsales in real time and in both directions, with field-level mapping and matching on identifiers you choose. Update a record in either CRM and the other reflects it within seconds.
Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
Where each CRM serves a different team or region, sync just the shared accounts and contacts so handoffs and cross-sell work.
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 | Freshsales objects | |
|---|---|---|
| Tasks and calls Rep activity records synced for activity reporting and coaching workflows. | Deals Pipeline records synced to a warehouse for revenue reporting. | |
| Custom fields Account- and contact-level custom attributes mapped field-by-field in a sync. | Tasks Rep to-dos created from external triggers or synced for productivity reporting. | |
| Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. | Appointments Scheduled meetings readable for activity analytics. | |
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Notes Free-text records attached to contacts, accounts, and deals. | |
| People (database records) Prospects from Apollo's global database, pulled into downstream systems once enriched or saved. | Sales activities Configurable activity types logged against records, useful for engagement scoring. | |
| Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. | Products Catalog items attached to deals for line-level revenue data. |
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–Freshsales connection.
Changes in Apollo.io or Freshsales instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Apollo.io or Freshsales data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Apollo.io or Freshsales record.
Track your Apollo.io ⇄ Freshsales sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Apollo.io and Freshsales.
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.
Authenticate Apollo.io and Freshsales with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Apollo.io and Freshsales 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.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Apollo.io and Freshsales: authenticate both systems, choose the objects to sync (such as Apollo.io's Tasks and calls and Custom fields), 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 Freshsales: Polling with updated-at filters through views; outbound webhooks can be configured via workflow automations. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
On the Apollo.io side: Custom fields, Contacts, Accounts, People (database records), plus custom fields where Apollo.io exposes them. On the Freshsales side: Accounts, Deals, Tasks, Appointments. 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 Freshsales: Post-acquisition consolidation; Migration with a parallel run; Divisional or regional split. Keep both CRMs accurate while the merged team decides on a target system, instead of freezing one and losing months of updates.
Apollo.io: REST API. Authentication: API key (passed in request headers); master keys unlock account-wide endpoints. Freshsales: REST API. Authentication: API key sent as a Token authorization header. Stacksync manages authentication, retries, and rate limits on both sides.
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.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Apollo.io and Freshsales.