Exchange Server. The rest of us just sync up with Google Calendar.
Example at https://digibites.zendesk.com/hc/en-us/articles/200299863-How-do-I-share-my-calendar-with-someone-else-Google-Calendar-or-Outlook-com-
How do you set up a shared calendar on MS Outlook 2016 so that others people can access it and edit it etc. at any time?
I need, one main overall calendar that is accessible to around 5/6 people. So far I haven't made any progress. I think the problem may be is that I don't have the public folders tab as an option on my outlook 2016. It just doesn't exist, do you know why this is? Do you need microsoft exchange or something? Confused, all these different programs.
Also some tabs are shaded out like "share calendar" and "calendar permissions."
I may need to get Office 365. Does that include options to share calendars etc.? If so that might be the way to go.
Or what about Google Calendars? I tried this but having trouble with that too. I shared my calendar and gave my friend full permissions to edit and manage the calendar but he can't see it on his account.