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Database

Connect Azure Cosmos DB to any app with two-way sync.

Two-way sync Azure Cosmos DB across all your CRMs, databases, data warehouses, EDI systems, and AI tools, with custom workflows tailored to your data.

  • 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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Object catalog

What Stacksync syncs in Azure Cosmos DB.

These objects sync between Azure Cosmos DB and any connected system, with field-level mapping and conflict resolution. Custom fields are picked up from the live schema where Azure Cosmos DB exposes them.

Databases
Top-level namespaces that scope containers and throughput provisioning.
Containers
The unit of partitioning and throughput; each container maps to a synced collection.
Items (JSON documents)
Schema-flexible JSON records read and written during sync; nested structures are flattened or mapped as needed.
Partition keys
Determine data distribution and must be included on writes for the sync to route items correctly.
Change feed entries
Ordered record of inserts and updates per partition, consumed for incremental sync.
Stored procedures and triggers
Server-side logic scoped to a partition; relevant when writes must respect existing validation.
API surface

How Stacksync connects to Azure Cosmos DB.

The connector runs on Azure Cosmos DB's native API. Stacksync manages authentication, rate limits, retries, and schema changes so your team does not maintain integration code.

Connection
REST API and SDKs over HTTPS (API for NoSQL, formerly the SQL API); also MongoDB, Cassandra, Gremlin, and Table API surfaces
Authentication
Account keys, resource tokens, or Microsoft Entra ID role-based access
Change detection
Built-in change feed exposing inserts and updates in order within each partition key range

Sync directions

  • Read Supported
  • Write Supported
  • Change data capture Supported
  • Webhooks Not available
What ships with Azure Cosmos DB

Connect Azure Cosmos DB for flexible, real-time data sync.

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

Real-time

Two-way sync

Changes in Azure Cosmos DB instantly reflect across connected systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Azure Cosmos DB 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 Azure Cosmos DB record.

Observability

Monitoring

Track your Azure Cosmos DB sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions.

Use cases

What teams run on the Azure Cosmos DB connector.

Azure Cosmos DB is Microsoft's fully managed NoSQL database, bought by application and platform engineering teams building low-latency, globally distributed workloads such as AI agents, digital commerce, IoT, and booking systems. Microsoft positions it as the single operational database for modern apps, covering document, key-value, graph, and table models behind NoSQL, MongoDB, Cassandra, Gremlin, and Table APIs. Its gravity is high: it holds live application state that CRMs, relational stores, and analytics systems need to see.

  • Data engineering
  • Application developers
  • Platform engineering

  1. Stream operational documents from Cosmos DB into a SQL warehouse via the change feed for analytics without hitting request-unit budgets with full scans.

  2. Sync CRM or ERP records into a Cosmos DB container that backs a customer-facing application.

  3. Mirror Cosmos DB items into Postgres so teams can query operational data with standard SQL.

  4. Two-way sync between a Cosmos DB-backed product catalog and a PIM or commerce platform.

  5. Consolidate documents from multiple containers into a single reporting store.

  6. Sync Items (JSON documents) from operational Containers into a CRM or relational database so business teams work with live application data without querying Cosmos DB directly.

All Azure Cosmos DB integrations

Pick the system you need to keep in sync with Azure Cosmos DB. Each page covers the sync setup, field mapping, and common workflows for that pair.

CRM · 31

ERP · 24

Database · 18

Data warehouse · 11

Business productivity · 29

Accounting and finance · 13

How it works

Set up Azure Cosmos DB in minutes, without APIs.

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 Azure Cosmos DB with its 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
    Azure Cosmos DB connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Azure Cosmos DB objects to sync — Stacksync auto-detects the schema, 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 · Azure Cosmos DB
    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
    Azure Cosmos DB database
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Azure Cosmos DB connector FAQ

What can I sync with the Azure Cosmos DB connector?

Azure Cosmos DB's core objects — Databases, Containers, Items (JSON documents), Partition keys and custom fields — can sync with any of 302 other systems. Every integration is real-time and bidirectional, with field-level mapping and conflict resolution.

How does Stacksync connect to Azure Cosmos DB?

Via REST API and SDKs over HTTPS (API for NoSQL, formerly the SQL API); also MongoDB, Cassandra, Gremlin, and Table API surfaces, authenticated with Account keys, resource tokens, or Microsoft Entra ID role-based access. Changes are detected as follows — built-in change feed exposing inserts and updates in order within each partition key range. Stacksync manages rate limits, retries, and schema changes automatically.

Is the Azure Cosmos DB connector two-way?

Yes. Changes made in Azure Cosmos DB propagate to the connected system and vice versa, in milliseconds. One-way flows are also supported when a direction should stay read-only.

How long does an Azure Cosmos DB integration take to set up?

Most Azure Cosmos DB integrations go live in minutes: authenticate Azure Cosmos DB and the other system, pick objects and fields, and enable the sync. No code and no infrastructure to manage.

Is Azure Cosmos DB data secure in transit?

Stacksync is SOC 2 Type II, ISO 27001, GDPR and HIPAA compliant. Azure Cosmos DB data is encrypted in transit, and a zero-persistent-storage architecture means records are not retained after a sync operation.

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.

Learn more about security
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:

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