Ratio CRMRatio

Integration — Microsoft Outlook

Ratio + Outlook — Microsoft-native scheduling for service businesses

Connect Outlook to Ratio for two-way calendar sync. Booked appointments appear on your Outlook calendar, your availability reflects existing Outlook events, and scheduling works natively with Microsoft 365.

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Why this integration

How Ratio connects with Microsoft Outlook

Microsoft 365 users want a CRM that respects Outlook as the source of truth. Ratio's Outlook integration provides two-way calendar sync so bookings, availability, and reschedules work natively with your existing Microsoft setup.

This page is for Microsoft 365 and Outlook users searching for a CRM with native Outlook calendar integration, or teams who need their scheduling software to work alongside Microsoft instead of forcing a Google Workspace switch.

How it works

Setup and sync

  • ✓Connect your Microsoft account via OAuth
  • ✓Ratio reads your Outlook calendar to determine real-time availability
  • ✓New bookings create events on your Outlook calendar automatically
  • ✓Reschedules and cancellations sync back to Outlook in both directions

What you can do

Capabilities with Microsoft Outlook connected

Two-way sync between Ratio appointments and Outlook calendar events

Real-time availability that respects existing Outlook events

Multiple calendar support for work and personal accounts

Microsoft 365 and personal Outlook account compatibility

Booking reminders for both client and team

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Next step

Connect Microsoft Outlook and run your business on one stack

Start your Ratio account, connect Microsoft Outlook in a single OAuth flow, and keep your CRM and operations aligned without manual data entry.

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Frequently asked questions

Does Ratio integrate with Outlook?

Yes. Two-way sync between Ratio appointments and Outlook calendar. Availability respects existing Outlook events, and new bookings create Outlook calendar events automatically.

Does the Outlook integration work with Microsoft 365?

Yes. Ratio supports Microsoft 365 (business) accounts and personal Outlook accounts through OAuth.

Can I use Outlook and Google Calendar together?

Yes. Connect both if you want availability checked across both calendars. Most users choose one primary calendar for new bookings and keep the other for availability checking.

Does Outlook work with Zoom and Teams links?

Yes. Booking types can be configured to generate Zoom or Microsoft Teams meeting links automatically, which appear in Outlook calendar events.

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