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Database ⇄ Accounting and finance

MongoDB to Rillet integration — real-time, two-way sync

Keep MongoDB and Rillet 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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Why teams connect MongoDB and Rillet

Work with Rillet's financial data straight from MongoDB: read it with ordinary queries, write to it from your own code, and let Stacksync keep both sides consistent.

Engineers need finance data more often than finance systems make it easy to get: for internal tools, reporting services, or logic that reacts to invoices and payments. Working through the vendor API means rate limits, pagination, and glue code that has to be maintained forever.

Stacksync mirrors Reimbursement, Custom Field, Account, Customer from Rillet into Databases, Collections, Documents, Embedded documents and arrays in MongoDB and keeps the two in sync bi-directionally and in real time. Your services read finance records with normal queries against MongoDB, and rows your code writes or updates flow back into Rillet with validation, so the finance system stays the system of record.

Common use cases

  • Push billing events from a product or usage-metering system into Rillet for revenue recognition.
  • Sync AR and collection status back to customer success tools ahead of renewals.
  • Replicate operational MongoDB data into a relational database, flattening nested documents into normalized tables for SQL reporting.
  • Capture change stream events and propagate them to SaaS tools in near real time instead of running batch exports.

Query finance data like any other data

Customers, invoices, and payments from Rillet live in MongoDB as regular tables or collections your team can join, index, and query.

Internal tools without API plumbing

Build dashboards and back-office tools directly on MongoDB; Stacksync handles the API calls, rate limits, and retries against Rillet.

Write back safely

Updates written to the synced tables in MongoDB propagate into Rillet, so automations can create or correct finance records without custom integration code.

What you can sync between MongoDB and Rillet

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.

MongoDB objects Rillet objects
Databases Logical groupings of collections that scope a sync connection. Invoice Synced with incremental and full sync per the Stacksync docs.
Collections The table-like sync unit; each collection maps to a table or object in the paired system. Credit Memo Synced with incremental and full sync per the Stacksync docs.
Documents BSON records created, updated, and deleted during syncs, keyed by _id. Bill Synced with incremental and full sync per the Stacksync docs.
Embedded documents and arrays Nested structures that syncs flatten or map to related records in relational targets. Journal Entry Synced with incremental and full sync per the Stacksync docs.
Indexes Keep lookups by sync key fast on large collections. Invoice Payment Synced with incremental and full sync per the Stacksync docs.
Views Read-only aggregation-defined sources for filtered sync datasets. Charge Synced with incremental and full sync per the Stacksync docs.
What ships with MongoDB ⇄ Rillet

Connect MongoDB and Rillet for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every MongoDB–Rillet connection.

Real-time

Two-way sync

Changes in MongoDB or Rillet instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever MongoDB or Rillet 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 MongoDB or Rillet record.

Observability

Monitoring

Track your MongoDB ⇄ Rillet sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between MongoDB and Rillet.

How the MongoDB and Rillet connectors work

MongoDB

Integration surface
MongoDB wire protocol via official drivers; Atlas additionally offers an administration REST API for cluster management
Authentication
Database credentials (username/password) or TLS/SSL X.509 certificate (.pem upload), entered individually or via a MongoDB connection string (SRV or standard); Stacksync IP allowlisting required
Change detection
MongoDB oplog and change streams (requires the database to run as a replica set — even single-node); Stacksync leverages these built-in tools to track changes in real time
Capabilities
read · write · CDC
MongoDB setup guide

Rillet

Integration surface
REST API (OpenAPI-specified, with production and sandbox environments)
Authentication
API key generated in Rillet (Organization Setting -> API Access); uncheck Read Only for bidirectional sync, check Read Only for one-way sync
Change detection
Near real-time updates via change tracking; incremental sync per object, with delete detection (some objects checked every 1h or 4h)
Capabilities
read · write · CDC · webhooks
Rate limits
Subject to the platform's API rate limits.
Rillet setup guide
How it works

How to connect MongoDB to Rillet — 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 MongoDB and Rillet 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
    MongoDB connected
    Rillet connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the MongoDB and Rillet 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 · MongoDB ⇄ Rillet
    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
    MongoDB Rillet
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

MongoDB and Rillet integration FAQ

SECURITY

Security teams love 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.

Learn more about security
SOC 2 type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
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:

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 386 integrations available for MongoDB and Rillet.

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