To connect external calendar click on Settings icon on My calendar page:
On Settings sliding page click on Configure External calendars (CalDAV). You will find connected external calendars list here, to add more please click on Add External Calendar:
- the calendar name to display in your calendars list
- the connection URL. For example: a Google calendar connection URL would be something like this:
- user name and password
Please note that though connected external calendar events will appear in your Bitrix24, the event reminders will not.