I'm using the Google Calendar API to synchronise calendars with Google Calendar.
It work fine with a normal Google account, but I can't get it to work with a Google for Work account.
I basically ask credential to create a new calendar and then define myself as an owner of the calendar to be able to update it in the future. This is working for both types of account, but when I try to add new events, with the Google for Work account, I get a 403 Forbidden error.
Since it's working fine for the normal Google account, I assume there is a security setting somewhere which prevent me to create events but I can find which one.
I tried to add my client ID and the scope https://www.googleapis.com/auth/calendar in the Admin console of the Google for Work account but it as no effect.
"External Sharing options for primary calendars" controls in what way accounts outside the domain can access calendars within the domain. The setting is in the Admin console: support.google.com/a/answer/60765?hl=en