Real-time
Two-way sync
Changes in Auth0 or Bill instantly reflect in both systems. No stale data, no manual imports.
Security and identity ⇄ Accounting and finance
Auth0 to Bill integration — real-time, two-way sync
Keep Auth0 and Bill 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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Migrated from MuleSoft
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Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect Auth0 and Bill
Keep the people who can act on financial records in Bill matched to their identities in Auth0, so access is provisioned, updated, and revoked in real time.
Bill runs the money — the ledgers, invoices, budgets, and payments — and every one of those actions is taken by a person with a login. Auth0 is where those people and their access actually live: who is employed, what team they belong to, and what they are allowed to do. The two systems rarely share customers or transactions, but they share the one thing that governs both — the user. When that overlap is maintained by hand, a departed employee keeps finance access for weeks and a new hire waits on a ticket to get any.
Stacksync keeps Vendor Credits and Credit Memos, Bills, Vendors, Invoices in Bill aligned with Organizations, Organization Members, Connections, Clients (Applications) in Auth0, field by field and in real time. A person added, moved, or deactivated on the identity side updates their matching user in the finance system within seconds, with the role or permission set mapped from the group they belong to. Direction is yours to set: lead provisioning from the directory, or let an HR-owned finance record drive the downstream accounts.
For a finance team, that alignment is an audit control rather than a convenience. When the user list in the books matches the identity source of truth, segregation-of-duties and access reviews start from data that is already correct instead of an export that was current last quarter.
Common use cases
- 01 Read Payments and payment status into a reconciliation database once bills are marked paid in BILL.
- 02 Read approved Bills and their line items into a Postgres warehouse for spend, accrual, and cash-flow reporting without CSV exports.
- 03 Replicate Roles and Resource Server scopes into a database to audit which Users hold which permissions across every Application.
- 04 Stream Log Events for logins, signups, and failed authentications into a warehouse for security monitoring and authentication funnel reporting.
Common sync patterns
People attributes for allocation and approvals
Department, manager, and employee identifiers carried in Auth0 flow to Bill, so expense routing, cost-center allocation, and approval chains use the same org data as the directory.
Where Auth0 is the identity source: offboarding reaches the books
When a person is deactivated in Auth0, their matching user in Bill is disabled in the same motion, so departed employees keep no standing access to financial records.
One user roster across both systems
People, their status, and their contact details stay matched between Bill and Auth0, so the finance system's login list reflects who actually works here instead of drifting out of date.
What you can sync between Auth0 and Bill
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.
| Auth0 objects | Bill objects | How this pairing syncs | |
|---|---|---|---|
| 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. | Chart of Accounts GL accounts used to code bills and invoices; typically mastered in the accounting system and written into BILL for consistent coding. | Organizations is specific to Auth0 and Chart of Accounts to Bill — each maps to any object or custom field on the other side. | |
| Organization Members Membership records linking Users to Organizations with roles; written to provision and deprovision access as accounts change. | Bank Accounts Funding and deposit accounts; read to reconcile payments and posted transactions against the ledger. | Organization Members is specific to Auth0 and Bank Accounts to Bill — each maps to any object or custom field on the other side. | |
| Connections Identity-provider configs (database, social, enterprise SAML/OIDC); typically read out to inventory how each tenant authenticates. | Vendor Credits and Credit Memos AP and AR adjustments applied against bills and invoices; synced so balances stay accurate on both sides. | Connections is specific to Auth0 and Vendor Credits and Credit Memos to Bill — each maps to any object or custom field on the other side. | |
| Clients (Applications) Registered applications and their metadata under /api/v2/clients; mirrored to a database for app and credential inventories. | Bills Accounts-payable amounts owed to vendors, with bill line items; read and created via /v3/bills and pulled incrementally by filtering on createdTime/updatedTime. | Clients (Applications) is specific to Auth0 and Bills to Bill — each maps to any object or custom field on the other side. | |
| Resource Servers (APIs) API definitions and their scopes; synced so permission catalogs used for access reviews stay current. | Vendors Payee master records; synced two-way with vendor/supplier tables in an ERP or accounting system so new payees don't have to be re-keyed. | Resource Servers (APIs) is specific to Auth0 and Vendors to Bill — each maps to any object or custom field on the other side. | |
| Log Events Tenant events (logins, signups, failed logins, admin changes) from /api/v2/logs; read-only, streamed into a warehouse for security analytics. | Invoices Accounts-receivable invoices sent to customers; created and read via /v3/invoices to keep billing status aligned with the ERP or CRM. | Log Events is specific to Auth0 and Invoices to Bill — each maps to any object or custom field on the other side. |
How changes propagate between Auth0 and Bill
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.
Auth0 Bill 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 Bill through its API, with automatic retries and rate-limit backoff.
Bill Auth0 Sub-second propagation
DetectionBill notifies Stacksync of record changes through webhook events. Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on.
DeliveryEach detected change is written to Auth0 through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- 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.
- Bill: 20,000 requests per developer key per hour; login (POST /v3/login) capped at 200/hour; maximum 3 concurrent requests per developer key per organization. Spend & Expense API is a separate token at 60 calls/token/minute.
What ships with Auth0 ⇄ Bill
Connect Auth0 and Bill for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Auth0–Bill connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Auth0 or Bill 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 Auth0 or Bill record.
Observability
Monitoring
Track your Auth0 ⇄ Bill sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Auth0 and Bill.
How the Auth0 and Bill connectors work
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
Bill
- Integration surface
- REST/JSON (BILL v3 Connect API)
- Authentication
- Session-based: POST /v3/login with username, password, organizationId, and a developer key (devKey) returns a sessionId that is passed with the devKey as headers on every subsequent call; OAuth is available for partner/embedded apps
- Change detection
- Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on createdTime/updatedTime list filters as the fallback
- Capabilities
- read · write · webhooks
- Rate limits
- 20,000 requests per developer key per hour; login (POST /v3/login) capped at 200/hour; maximum 3 concurrent requests per developer key per organization. Spend & Expense API is a separate token at 60 calls/token/minute.
How it works
How to connect Auth0 to Bill — 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 Auth0 and Bill with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Auth0
connected
Bill
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Auth0 and Bill 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 · Auth0 ⇄ BillCustomers 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.
Auth0 BillCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Auth0 and Bill integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Auth0 and Bill: authenticate both systems, choose the objects to sync (such as Auth0's Organizations and Organization Members), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
Change detection on Auth0: 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. On Bill: Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on createdTime/updatedTime list filters as the fallback. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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On the Bill side: Vendor Credits and Credit Memos, Bills, Vendors, Invoices, plus custom fields where Bill exposes them. On the Auth0 side: Organizations, Organization Members, Connections, Clients (Applications). Stacksync auto-detects both schemas and converts types between the two systems.
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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.
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Common patterns for Auth0 and Bill: People attributes for allocation and approvals; Where Auth0 is the identity source: offboarding reaches the books; One user roster across both systems. Department, manager, and employee identifiers carried in Auth0 flow to Bill, so expense routing, cost-center allocation, and approval chains use the same org data as the directory.
-
Auth0: 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. Bill: REST/JSON (BILL v3 Connect API). Authentication: Session-based: POST /v3/login with username, password, organizationId, and a developer key (devKey) returns a sessionId that is passed with the devKey as headers on every subsequent call; OAuth is available for partner/embedded apps. 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:
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