Outlook duplicates internet calendar.
Hello experts :), Someone in my company has an issue with internet calendars. He subscribed to his google agenda and the calendar appears in the "other calendar" section. So it seems to be good. But after a while, there are "copies" of his calendar. CalendarName(1), CalendarName(2), ... (5) for example. It is like if Outlook duplicates calendar instead of overwriting the changes in the calendar. He tried to delete them but after some time they reappears. Where does it come from? Duplicate option, sync issue ?