To find your calendar ID please head into your Sub-account Settings > Click on 'Calendar Code' > Filter for your specific Calendar > Click on the copy 'Embed Code' or 'URL' button

By turning on this flag, users will not be able to access the list of calendars through the 'Back' button (on the booking widget)

The 'Calendar Code' Button is located next to the 'Calendar Preferences' button 

The highlighted code is the Calendar ID for the Group Calendar:

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FAQ

What does the Dedicated Calendar URL do?

By toggling this off, users will not be able to access the list of calendars through the 'Back' button (on the booking widget)