Two-way sync
Changes in Apollo.io or Twenty CRM instantly reflect in both systems. No stale data, no manual imports.
Keep Apollo.io and Twenty CRM 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 Tasks and calls, Custom fields, Contacts, Accounts in Apollo.io with Tasks, Notes, Custom Objects, Attachments in Twenty CRM 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.
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.
Deal stage and value on shared accounts stay visible from either CRM.
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 | Twenty CRM objects | How this pairing syncs | |
|---|---|---|---|
| Deals (Opportunities) Pipeline records that can be read and written to keep Apollo aligned with the CRM of record. | Workspace Members User accounts used for record ownership and assignment mapping. | Deals (Opportunities) is specific to Apollo.io and Workspace Members to Twenty CRM — 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. | People Individual contact records with emails, phones, and company links; a core target for contact syncs. | Tasks and calls is specific to Apollo.io and People to Twenty CRM — 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. | Companies Account-level records that group people and opportunities. | Custom fields is specific to Apollo.io and Companies to Twenty CRM — 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. | Opportunities Deal records tracked through pipeline stages, synced for forecasting. | Contacts is specific to Apollo.io and Opportunities to Twenty CRM — each maps to any object or custom field on the other side. | |
| Accounts Company records with firmographic attributes, matched to CRM accounts during sync. | Tasks To-dos linked to people, companies, or deals. | Accounts is specific to Apollo.io and Tasks to Twenty CRM — each maps to any object or custom field on the other side. | |
| People (database records) Prospects from Apollo's global database, pulled into downstream systems once enriched or saved. | Notes Free-form notes attached to records, useful for mirroring activity from other tools. | People (database records) is specific to Apollo.io and Notes to Twenty CRM — each maps to any object or custom field on the other side. |
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.
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 Twenty CRM through its API, with automatic retries and rate-limit backoff.
DetectionTwenty CRM notifies Stacksync of record changes through webhook events. Webhooks on record create, update, and delete events, or polling on record update timestamps.
DeliveryEach detected change is written to Apollo.io through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–Twenty CRM connection.
Changes in Apollo.io or Twenty CRM instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Apollo.io or Twenty CRM 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 Twenty CRM record.
Track your Apollo.io ⇄ Twenty CRM sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Apollo.io and Twenty CRM.
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 Twenty CRM 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 Twenty CRM 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 Twenty CRM: 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.
On the Apollo.io side: Tasks and calls, Custom fields, Contacts, Accounts, plus custom fields where Apollo.io exposes them. On the Twenty CRM side: Tasks, Notes, Custom Objects, Attachments. 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 Twenty CRM: Migration with a parallel run; Divisional or regional split; Where both track pipeline: deal visibility across systems. When one CRM is replacing the other, run both fully live until cutover, with no snapshot gap and no data freeze.
Apollo.io: REST API. Authentication: API key (passed in request headers); master keys unlock account-wide endpoints. Twenty CRM: GraphQL and REST APIs. Authentication: API key. Stacksync manages authentication, retries, and rate limits on both sides.
Apollo.io: Apollo distinguishes between people in its global database and contacts saved to your account; only saved contacts carry your custom fields and sequence history. Twenty CRM: Both GraphQL and REST APIs are generated from the workspace's object schema, so custom objects get the same API surface as standard ones. Stacksync's field mapping accounts for these differences between Apollo.io and Twenty CRM without custom code.
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 337 integrations available for Apollo.io and Twenty CRM.