Real-time
Two-way sync
Changes in Microsoft 365 or OpenSearch instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ Database
Microsoft 365 to OpenSearch integration — real-time, two-way sync
Keep Microsoft 365 and OpenSearch 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 Microsoft 365 and OpenSearch
Mirror Microsoft 365's data into OpenSearch so your own code can read and write it like any other table, with changes flowing both ways in seconds.
Engineers integrate with tools like Microsoft 365 through APIs, which means auth, pagination, rate limits, webhooks, and retry logic, all maintained forever and all different for every tool. Meanwhile the data would be trivial to use if it simply lived in OpenSearch.
Stacksync mirrors Calendar Events, Contacts, OneDrive Files (driveItems), SharePoint Sites & Lists from Microsoft 365 into Ingest pipelines, Data streams, Snapshots, Indexes in OpenSearch and keeps both sides in sync in real time. Your services query the database directly, and inserts or updates your code makes flow back into Microsoft 365, so the tool and the database never disagree.
Common use cases
- Sync SharePoint lists with operational databases so business users edit in SharePoint while systems read SQL.
- Archive mail and file metadata into a warehouse for compliance and activity analytics.
- Index support tickets and activity logs from SaaS tools for operational dashboards.
- Backfill or rebuild indexes from a database after mapping changes without hand-written ETL.
Automate Microsoft 365 from your codebase
Write to the synced tables in OpenSearch and Stacksync propagates the change into Microsoft 365, replacing custom integration code.
React to changes as they happen
Updates in Microsoft 365 arrive as row changes in OpenSearch, so triggers, jobs, and services can respond in near real time.
One integration pattern for the whole stack
Every synced tool looks the same from the database, so each new integration is configuration, not a new codebase.
What you can sync between Microsoft 365 and OpenSearch
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.
| Microsoft 365 objects | OpenSearch objects | |
|---|---|---|
| SharePoint Sites & Lists List items read and written like lightweight database tables. | Documents JSON records written via the index and bulk APIs and read via search queries | |
| Teams Team and membership data provisioned from upstream systems. | Index aliases Stable names over rotating indexes, used for zero-downtime reindex during backfills | |
| Planner & To Do Tasks Task items synced with project and work-management tools. | Index templates Mapping and settings presets applied to new indexes a sync creates | |
| Users Entra ID user accounts synced with HR and identity systems. | Ingest pipelines Server-side processors that transform documents as they are written | |
| Groups Microsoft 365 and security groups kept aligned with org structure and access rules. | Data streams Append-oriented time-series storage for logs and events pushed from source systems | |
| Mail Messages Exchange Online messages read for logging, archiving, or activity capture. | Snapshots Backup artifacts, relevant when reseeding an index from a repository |
What ships with Microsoft 365 ⇄ OpenSearch
Connect Microsoft 365 and OpenSearch for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Microsoft 365–OpenSearch connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Microsoft 365 or OpenSearch 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 Microsoft 365 or OpenSearch record.
Observability
Monitoring
Track your Microsoft 365 ⇄ OpenSearch sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Microsoft 365 and OpenSearch.
How the Microsoft 365 and OpenSearch connectors work
Microsoft 365
- Integration surface
- REST API (Microsoft Graph)
- Authentication
- OAuth 2.0 via Microsoft Entra ID, with delegated or application permissions
- Change detection
- Graph change notifications (webhooks) plus delta queries for incremental sync
- Capabilities
- read · write · webhooks
OpenSearch
- Integration surface
- REST API over HTTP(S) with JSON payloads
- Authentication
- basic authentication with the security plugin, or AWS IAM request signing on Amazon OpenSearch Service
- Change detection
- no native change feed; reads rely on queries with scroll or point-in-time polling
- Capabilities
- read · write
- Rate limits
- throughput bounded by cluster sizing rather than fixed API quotas
How it works
How to connect Microsoft 365 to OpenSearch — 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 Microsoft 365 and OpenSearch with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Microsoft 365
connected
OpenSearch
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Microsoft 365 and OpenSearch 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 · Microsoft 365 ⇄ OpenSearchCustomers 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.
Microsoft 365 OpenSearchCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Microsoft 365 and OpenSearch integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Microsoft 365 and OpenSearch: authenticate both systems, choose the objects to sync (such as Microsoft 365's SharePoint Sites & Lists and Teams), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Microsoft 365: REST API (Microsoft Graph). Authentication: OAuth 2.0 via Microsoft Entra ID, with delegated or application permissions. OpenSearch: REST API over HTTP(S) with JSON payloads. Authentication: Basic authentication with the security plugin, or AWS IAM request signing on Amazon OpenSearch Service. Stacksync manages authentication, retries, and rate limits on both sides.
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Microsoft 365: Nearly all Microsoft 365 workloads (Exchange, SharePoint, OneDrive, Teams, Entra ID) are exposed through the single Microsoft Graph endpoint rather than per-product APIs. OpenSearch: Amazon OpenSearch Service domains typically authenticate with IAM request signing, while self-managed clusters use the security plugin's basic auth or certificates. Stacksync's field mapping accounts for these differences between Microsoft 365 and OpenSearch without custom code.
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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 Microsoft 365 and OpenSearch records are not retained after a sync operation.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Microsoft 365 and OpenSearch connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Microsoft 365–OpenSearch integration in-house.
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Yes — Stacksync ships production-grade connectors for both Microsoft 365 and OpenSearch. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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.
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:
Related integrations
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Microsoft 365 and OpenSearch.
Popular · 8 of 386
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Microsoft 365 ⇄ Couchbase -
Microsoft 365 ⇄ DuckDB -
Microsoft 365 ⇄ Elasticsearch -
Microsoft 365 ⇄ Google Cloud Spanner -
OpenSearch ⇄ Microsoft Dynamics 365 -
OpenSearch ⇄ Microsoft Teams -
OpenSearch ⇄ NextGen Healthcare -
OpenSearch ⇄ Orderful
No integrations match .
