It is possible to sync ONLY ONE Bookeo user account with the same Google Calendar account.
If you have already set up a sync with your Google account and want to sync a different Bookeo account, you will need to revoke the existing permission first, so that you can authorize the new Bookeo account to sync with your Google account.
To revoke an existing permission:
1. Click on the Profile icon [1] at the top right in your Google account
2. Click on Manage your Google Account [2]
3. Click on Third-party apps and services [3]
4. Click on Bookeo [4]
5. In the Bookeo has some access to your Google Account section, click on the See details [4] button
7. In the next page, click on the Remove all access button. When prompted Remove access you’ve given to Bookeo?, click on the Confirm button.