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What It Does

When you connect Outlook Calendar, your AI receptionist can:
  • Check your real availability before offering appointment times to callers
  • Create calendar events automatically when an appointment is booked
  • Avoid double-bookings by reading your existing calendar entries
This works the same way as the Google Calendar integration, but for Microsoft Outlook and Office 365 users.

Connecting Outlook Calendar

1

Go to Integrations

Click Integrations in the left sidebar.
2

Find Outlook Calendar

Scroll to the Outlook Calendar card and click Connect.
3

Sign in to Microsoft

A Microsoft login window will appear. Sign in with the Microsoft account that has your business calendar.
4

Grant permissions

Microsoft will ask you to allow CloseTheCall to read and write calendar events. Click Accept.
5

Confirm connection

You will be redirected back to CloseTheCall. The Outlook Calendar card will show a green “Connected” badge.
Use a shared calendar if multiple people manage your bookings. This way, the AI sees everyone’s availability in one place.

What Syncs

DirectionWhat happens
CloseTheCall to OutlookWhen your AI books an appointment, a calendar event is created in Outlook with the customer name, service, and time.
Outlook to CloseTheCallWhen checking availability, the AI reads your Outlook calendar to see which times are already taken.
Only events on your primary calendar are checked for availability. If you use multiple calendars, make sure your appointments are on the primary one.

Disconnecting

Go to Integrations, find the Outlook Calendar card, and click Disconnect. Your existing calendar events will not be deleted, but new appointments will no longer sync.

Troubleshooting

Make sure you are signing in with a Microsoft 365 or Outlook.com account. Older on-premise Exchange accounts are not supported. Try clearing your browser cookies and connecting again.
Check that the busy events are on your primary calendar, not a secondary or shared calendar. The AI only checks the primary calendar for conflicts.
After booking, it can take up to 30 seconds for the event to appear in Outlook. If events consistently do not appear, disconnect and reconnect the integration.
Make sure your time zone is set correctly in both CloseTheCall (My Business page) and in Outlook settings. Mismatched time zones can cause events to appear at the wrong time.