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CRM ⇄ Security and identity

Apollo.io to Auth0 integration — real-time, two-way sync

Keep Apollo.io and Auth0 in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

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Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect Apollo.io and Auth0

Keep the people Apollo.io and Auth0 both track in agreement in real time: the internal users who own records in Apollo.io, and the customer login accounts in Auth0.

A CRM and an identity system usually describe different populations. Apollo.io tracks customers, contacts, and the deals in motion; Auth0 governs who is allowed to sign in and what they can reach. Where the two meet is people. The reps who own records in Apollo.io are the same employees Auth0 provisions and disables, and when Auth0 also runs the login accounts for your product, the customers in Apollo.io are the same users Auth0 authenticates. Left unconnected, a departure in Auth0 leaves stale ownership sitting in Apollo.io, and a signup in Auth0 never reaches the account it belongs to.

Stacksync syncs Contacts, Accounts, People (database records), Sequences in Apollo.io with Users, Roles, Organizations, Organization Members in Auth0 in real time and in both directions, matching on email or an external ID and mapping field by field. You decide which system owns which fields, and new users, role and group changes, deactivations, and account status move within seconds instead of waiting on a quarterly access review or a manual export.

Common use cases

  • 01 Push CRM opportunity stages back into Apollo so reps see pipeline context while sequencing.
  • 02 Land sequence enrollment status and outcomes in a warehouse for outbound performance reporting.
  • 03 Stream Log Events for logins, signups, and failed authentications into a warehouse for security monitoring and authentication funnel reporting.
  • 04 Sync Organizations and their Connections into a customer database so B2B account records stay aligned with Auth0 tenants.

Common sync patterns

Where Auth0 runs customer login accounts: identity on the customer record

Signup, account status, multi-factor enrollment, and last-login from Auth0 land on the matching contact or account in Apollo.io, so go-to-market teams see who has actually activated and who has gone dormant.

Group and entitlement membership as CRM fields

Membership of a directory group or an entitlement in Auth0 maps to fields in Apollo.io, such as product tier, plan, or internal team, so segmentation reflects real access rather than a manual guess.

Where a closed deal should provision access: Apollo.io drives Auth0

A won or activated customer in Apollo.io can create or update the corresponding user or account in Auth0, so provisioning starts from the CRM record instead of a separate ticket.

What you can sync between Apollo.io and Auth0

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 Auth0 objects How this pairing syncs
Contacts People saved to your Apollo account, synced with emails, phone numbers, and enrichment fields. Users Core identity records with profile fields plus user_metadata and app_metadata; synced two-way (create, update, delete) via /api/v2/users. Credentials are never returned. Contacts is specific to Apollo.io and Users to Auth0 — each maps to any object or custom field on the other side.
Accounts Company records with firmographic attributes, matched to CRM accounts during sync. Roles RBAC role definitions and their permissions; synced with a database to audit which users hold which access, and assigned to Users from either side. Accounts is specific to Apollo.io and Roles to Auth0 — 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. Organizations B2B customer tenants under /api/v2/organizations; synced two-way with a CRM or customer database to keep account records aligned with Auth0 orgs. People (database records) is specific to Apollo.io and Organizations to Auth0 — each maps to any object or custom field on the other side.
Sequences Outreach cadences (emailer campaigns in the API); enrollment status is read to track which contacts are being worked. Organization Members Membership records linking Users to Organizations with roles; written to provision and deprovision access as accounts change. Sequences is specific to Apollo.io and Organization Members to Auth0 — 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. Connections Identity-provider configs (database, social, enterprise SAML/OIDC); typically read out to inventory how each tenant authenticates. Deals (Opportunities) is specific to Apollo.io and Connections to Auth0 — 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. Clients (Applications) Registered applications and their metadata under /api/v2/clients; mirrored to a database for app and credential inventories. Tasks and calls is specific to Apollo.io and Clients (Applications) to Auth0 — each maps to any object or custom field on the other side.

How changes propagate between Apollo.io and Auth0

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 Auth0 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 Auth0 through its API, with automatic retries and rate-limit backoff.

Auth0 Apollo.io Sub-second propagation

DetectionAuth0 notifies Stacksync of record changes through webhook events. Event Streams and Log Streams deliver near-real-time user.created/updated/deleted and tenant events to a custom webhook or Amazon EventBridge.

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.
  • Auth0: Per-tenant limit of about 15 Management API requests/second (bursts to 50) on paid tenants; X-RateLimit-* headers and HTTP 429 signal throttling.
What ships with Apollo.io ⇄ Auth0

Connect Apollo.io and Auth0 for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Apollo.io–Auth0 connection.

Real-time

Two-way sync

Changes in Apollo.io or Auth0 instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Apollo.io or Auth0 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 Auth0 record.

Observability

Monitoring

Track your Apollo.io ⇄ Auth0 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 Auth0.

How the Apollo.io and Auth0 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

Auth0

Integration surface
Management API v2 (REST); Authentication API issues the access token
Authentication
OAuth 2.0 client credentials from a machine-to-machine application; scoped Bearer JWT where each operation needs its own scope (e.g. read:users, create:users, update:users) or returns 403
Change detection
Event Streams and Log Streams deliver near-real-time user.created/updated/deleted and tenant events to a custom webhook or Amazon EventBridge; polling falls back to the Get Users search filtered on updated_at
Capabilities
read · write · webhooks
Rate limits
Per-tenant limit of about 15 Management API requests/second (bursts to 50) on paid tenants; X-RateLimit-* headers and HTTP 429 signal throttling
How it works

How to connect Apollo.io to Auth0 — 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.

  1. 01

    Connect your apps

    Authenticate Apollo.io and Auth0 with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    Apollo.io connected
    Auth0 connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Apollo.io and Auth0 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.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · Apollo.io ⇄ Auth0
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    Apollo.io Auth0
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Apollo.io and Auth0 integration FAQ

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.

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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:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 406 integrations available for Apollo.io and Auth0.

Popular · 7 of 406
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