Real-time
Two-way sync
Changes in Microsoft 365 or Outreach instantly reflect in both systems. No stale data, no manual imports.
Business productivity ⇄ CRM
Microsoft 365 to Outreach integration — real-time, two-way sync
Keep Microsoft 365 and Outreach 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
Case study
Migrated from Mulesoft
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Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
Case study
Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Microsoft 365 and Outreach
Sync what happens in Microsoft 365 with the customer records in Outreach, in real time and in both directions.
The CRM is supposed to be the record of every customer relationship, but customer-relevant information also accumulates in the other tools a team runs. Whatever Microsoft 365 holds or produces that touches a customer, whether conversations, payments, replies, enriched data, or notes, the CRM only benefits if it arrives without someone copying it over.
Stacksync connects Teams, Planner & To Do Tasks, Users, Groups in Microsoft 365 to Mailboxes, Prospects, Accounts, Sequences in Outreach with bi-directional, real-time sync. Activity and record changes in Microsoft 365 update the matching contact or account in Outreach, and CRM data flows the other way wherever Microsoft 365 can store and use it.
Common use cases
- Keep CRM contacts and Microsoft 365 contacts aligned in both directions.
- Sync employee records from an HR system into Entra ID users and group memberships.
- Suppress prospects across systems when a contact unsubscribes or a customer churns.
- Enroll leads in sequences automatically by writing sequence-state records when a lead crosses a scoring threshold in the warehouse.
Where Microsoft 365 can store CRM context: fields kept current
Owner, lifecycle stage, or account details from Outreach sync into Microsoft 365, so people working there have the context without switching tools.
Where Microsoft 365 supplies contact or company data
Enriched fields land directly on records in Outreach, and refreshes keep them from going stale.
Where Microsoft 365 processes payments
Charges, refunds, and subscription changes appear on the account in Outreach, so revenue context lives with the relationship.
What you can sync between Microsoft 365 and Outreach
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 | Outreach objects | |
|---|---|---|
| Contacts Personal and org contacts kept consistent with CRM contact records. | Tasks Rep action items mirrored between Outreach and the CRM | |
| OneDrive Files (driveItems) File and folder metadata synced for document workflows and audits. | Opportunities Deal records used to tie engagement to pipeline outcomes | |
| SharePoint Sites & Lists List items read and written like lightweight database tables. | Users Seat holders used to resolve ownership on synced records | |
| Teams Team and membership data provisioned from upstream systems. | Mailboxes Connected sending accounts referenced when attributing outbound activity | |
| Planner & To Do Tasks Task items synced with project and work-management tools. | Prospects The people being engaged; the main record kept in sync with the CRM | |
| Users Entra ID user accounts synced with HR and identity systems. | Accounts Companies grouping prospects, aligned with CRM account ownership |
What ships with Microsoft 365 ⇄ Outreach
Connect Microsoft 365 and Outreach for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Microsoft 365–Outreach connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Microsoft 365 or Outreach 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 Outreach record.
Observability
Monitoring
Track your Microsoft 365 ⇄ Outreach 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 Outreach.
How the Microsoft 365 and Outreach 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
Outreach
- Integration surface
- REST API conforming to the JSON:API specification
- Authentication
- OAuth 2.0
- Change detection
- webhook subscriptions on resource create, update, and destroy events, plus polling
- Capabilities
- read · write · webhooks
- Rate limits
- subject to per-user hourly rate limits
How it works
How to connect Microsoft 365 to Outreach — 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 Outreach 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
Outreach
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Microsoft 365 and Outreach 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 ⇄ OutreachCustomers 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 OutreachCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Microsoft 365 and Outreach integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Microsoft 365 and Outreach: authenticate both systems, choose the objects to sync (such as Microsoft 365's Contacts and OneDrive Files (driveItems)), map fields visually, and changes propagate both ways in milliseconds — no code required.
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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. Outreach: Webhook subscriptions can be registered per resource for create, update, and destroy events, enabling near-real-time outbound sync. Stacksync's field mapping accounts for these differences between Microsoft 365 and Outreach 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 Outreach 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 Outreach connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Microsoft 365–Outreach integration in-house.
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Yes — Stacksync ships production-grade connectors for both Microsoft 365 and Outreach. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Microsoft 365: Graph change notifications (webhooks) plus delta queries for incremental sync. On Outreach: Webhook subscriptions on resource create, update, and destroy events, plus polling. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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 Outreach.
Popular · 8 of 386
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Microsoft 365 ⇄ Freshsales -
Microsoft 365 ⇄ Freshworks CRM -
Microsoft 365 ⇄ Gladly -
Microsoft 365 ⇄ Gorgias -
Outreach ⇄ SendGrid -
Outreach ⇄ Twilio -
Outreach ⇄ GitHub -
Outreach ⇄ Atlassian
No integrations match .
