The following list contains the mailbox access type limitations when sharing calendars, folders or contact folders.
- Calendar, and their sub folders can be be shared from a Full Access Account and OWA. And can be opened with both OWA and a Full Access account.
- Contacts and their sub-folders can be shared with a Full Access account, but NOT OWA. And can Only be open with a Full Access account.
| Shared From | Can Be Opened From | |
| Calendar and its sub Folders | Full Access | Full Access, OWA |
| OWA | Full Access, OWA | |
| Contacts and its sub folders | Full Access |
Full Access, OWA |
| OWA Cannot share | None |
