In order to explain this more clearly, I'm going to use an example of two different Google accounts, reflecting the situation as I came into it. Names are, of course, changed for privacy.
I created a personal Google account, called TEST_ONE@google.com. The purpose of this account was to make a calendar with which all members of a group could add events. Six different individual calendars were created under this group.
If PERSON_A wanted to include all six individual calendars into ther own calendar, they could open the Google Calendar interface, simply enter TEST_ONE@google.com in the "Add a friend's calendar" field, and then all six calendars appeared in PERSON_A's calendar.
So far so good, but I was warned by Google that a personal account should not be used as a group account, and if I wanted to have a group, I should make an account that is owned by a Google+ page. So I did that, and now I have an account called TEST_TWO@pages.plusgoogle.com.
I repeated the same process as before, recreating six individual calendars under the account TEST_TWO@pages.plusgoogle.com.
The problem is that now, when PERSON_A puts TEST_TWO@pages.plusgoogle.com into the "Add a friend's calendar" field, they get a permission warning:
I want people to be able to add all the calendars from the TEST_TWO@pages.plusgoogle.com account all at once by adding the email address, just as I was able to do with the TEST_ONE@google.com account.
I have tried as much as I can to ensure that every relevant setting is set to public.
Why is the TEST_TWO@pages.plusgoogle.com not letting anyone have access to all it's calendars, and how do I make it so that it does?
Best Answer
Try these steps:
From the main calendar page open the "options" for the calendar you want to share.
Select the "Send to a friend" option.
Enter an email address to share with (this can be yourself or another). If you to be sure to get the URL make sure the "Send copy to myself" is checked.
The "View {calendar name} calendar" link, in the email body, is what you need to make sure those who need to view the calendar have.
Here is the link to my Public calendar
If you've added the user's and their permissions to the calendar then everything should be working as you've described.
Hope this helps.