When a user with restricted permissions (that is, sees only their calendars and not all calendars) updates the calendars in a group, this updates the group and removes the calendars from all the others as well.

Example:

The “face” group contains Sam and Jhon's facial care calendars.

(Sam - black mask, Jhon - black mask)

Sam can see and change all calendars.

Jhon can only see and edit the folders he's assigned to.

When Jhon enters the “Face” group, he will only see his calendar, that is Jhon - Black mask, because he is not allowed to see the calendars of others. If he decides to update the face group by adding the Jhon - Facial service, he will click on modify the group, it will ask him to select the calendars to assign to the group and the group will only see his calendars. He will therefore select his calendars, click on validate and that will update the group for everyone.

Now, the face group will only contain Jhon's calendars and it automatically deletes everyone else's calendars.

Thus, it must be ensured that when a user changes a group, it does not change the other calendars assigned to this group that he does not see.