Connect Your Calendar — Google Calendar and Outlook Calendar
Last updated: October 17, 2025
Connect the calendar you already use so CalendarApp can understand your schedule, place new bookings for you, and keep everything in sync. Your existing appointments remain exactly as they are. From now on, new bookings created by CalendarApp will be saved to the calendar you select during the connect flow.
Table of Contents
Prerequisites
Have a Google account or a Microsoft account ready. If you need one, create a Google account or create a Microsoft account before you start.
Connect Google Calendar
Why Google Calendar
Your appointments live there. It is simple to use, widely adopted across the internet, fast, and reliable. Connecting it gives CalendarApp a clear view of your schedule and a trusted place to save new bookings.
How to connect
- On the connect screen, select Google and click Next to authorize your calendar.
- In the pop-up window, choose the Google account to connect and continue.
- Review the permissions and click Continue.
- You will be redirected back to CalendarApp automatically. That’s it.


Connect Outlook Calendar
Why Outlook Calendar
Your appointments are already there, and Outlook is dependable and business ready. Connecting it lets CalendarApp read your schedule and place new bookings without changing how you work today.
How to connect
- In CalendarApp, choose Outlook Calendar and click Connect.
- Sign in with your Microsoft account in the pop-up window.
- Grant the requested permissions so CalendarApp can read calendars and create events.
- You will be redirected back to CalendarApp automatically.
Troubleshooting
- Permissions not granted or revoked — return to your Google Account or Microsoft account settings to re-grant access, then reconnect in CalendarApp.
- Wrong account appears — if several accounts are signed in, choose the correct one in the consent window or sign out of others and try again.
- Time zone mismatch — confirm your time zone in CalendarApp and in your connected calendar so booked times match.
- Pop-up blocked — allow pop-ups for your browser session and try again, or use a private window.
FAQ
- Can I remove Google Calendar or Outlook Calendar later Yes. You can disconnect a calendar at any time and connect a different one whenever you need.
- Can I add additional calendars Yes. You can connect more calendars later to reflect how you schedule across work, personal, and shared calendars.
- Can I use multiple calendars in one Google account Yes. Depending on your plan, you can manage up to 250 calendars inside one Google account.
Next Step
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If you have any questions, do not hesitate to reach out. We are always happy to help and we care about your success. Email us at info@calendar-app.de.