In order to save events from universal booking to google calendar you need to turn on and create google calendar credentials, please see tutorial below.
Once you have created credentials, you need to download google library:
Upload contents to joomla libraries folder ( JOOMLA_ROOT/libraries )
Once it’s there, you need to generate client secret file.
Click on the button download to download client_secret file ( see screenshot ).
Once downloaded rename file to client_secret.json and upload to google folder you uploded before to libraries folder.
Final path for client_secret file should be:
Final step – approve your google calendar visiting this link:
Once you approved, you can turn on google events saving in your calendar menu.
Find “Calendar settings” tab and turn on google event saving: