Two-way sync
Changes in Close or Firebase instantly reflect in both systems. No stale data, no manual imports.
Keep Close and Firebase in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Product and engineering teams constantly need CRM data, and the CRM API is a poor way to get it: rate limits, pagination, custom objects, and integration code that breaks when an admin renames a field. What they actually want is the data in Firebase, where it can be queried and joined like everything else.
Stacksync mirrors Activities, Tasks, Custom Activities, Custom Fields from Close into Cloud Storage Objects, Cloud Functions Triggers, Firestore Collections, Firestore Documents in Firebase with real-time, bi-directional sync. Read CRM records with plain queries; write updates from your application and they appear in Close with validation intact. Go-to-market teams keep working in the CRM, engineers keep working in the database, and neither has to think about the other.
Accounts, contacts, and custom objects from Close become tables in Firebase you can join with application data directly.
Signup, usage, or lifecycle changes written to Firebase sync onto the matching records in Close, giving go-to-market teams live product context.
Back-office apps read and write the synced tables; Stacksync handles the Close API, limits, and retries.
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.
| Close objects | Firebase objects | |
|---|---|---|
| Custom Fields Org-specific fields on leads, contacts, and opportunities; addressed by stable field ids in syncs. | Authentication Users User accounts read into CRMs and warehouses for customer records. | |
| Users Sales reps referenced as owners on leads, opportunities, and activities. | Cloud Storage Objects Files referenced from documents; usually synced as metadata plus URLs. | |
| Smart Views Saved lead searches that can scope which records a segment-based sync pulls. | Cloud Functions Triggers Server-side hooks that fire on document changes and can push updates outward. | |
| Leads The top-level record in Close; represents a company and holds its contacts, opportunities, and activity history. | Firestore Collections Top-level groupings of documents that a sync maps to tables or SaaS objects. | |
| Contacts People nested under a lead, with emails and phone numbers used for outreach syncs. | Firestore Documents Schemaless JSON-like records, the primary unit synced to and from external systems. | |
| Opportunities Deal records with value, confidence, and status; commonly synced to reporting and billing systems. | Subcollections Nested collections under documents, typically flattened into related tables during sync. |
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Close–Firebase connection.
Changes in Close or Firebase instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Close or Firebase data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Close or Firebase record.
Track your Close ⇄ Firebase sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Close and Firebase.
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 Close and Firebase 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 Close and Firebase 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 Close and Firebase: authenticate both systems, choose the objects to sync (such as Close's Custom Fields and Users), map fields visually, and changes propagate both ways in milliseconds — no code required.
Close: REST API. Authentication: API key (sent via HTTP Basic auth). Firebase: REST and gRPC APIs, typically accessed through the Firebase Admin SDK. Authentication: Google service account credentials (IAM) for server-side access; Firebase Auth tokens for client contexts. Stacksync manages authentication, retries, and rate limits on both sides.
Close: Close's data model is lead-centric: the Lead is a company-level record, and contacts, opportunities, and activities all hang off it, unlike CRMs that treat accounts and contacts as separate top-level objects. Firebase: Firestore documents are schemaless and support nested maps and arrays, so syncs define field mappings per document path rather than from a fixed schema. Stacksync's field mapping accounts for these differences between Close and Firebase without custom code.
Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Close and Firebase records are not retained after a sync operation.
Stacksync pricing is usage-based and starts at $1,000/month, including the managed Close and Firebase connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Close–Firebase integration in-house.
Yes — Stacksync ships production-grade connectors for both Close and Firebase. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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 Close and Firebase.