I cannot open a colleague's calendar even though they shared it
Sharing happens in two steps: the owner grants permission and you have to add the calendar to your view.
Try this first
- 1Ask the colleague to go to Outlook > Calendar > right-click their calendar > Properties > Permissions. Confirm your name is listed with at least 'Reviewer'.
- 2On your side: Calendar > Open Calendar > From Address Book > type the colleague's name.
- 3Still no luck? Have them use 'Share Calendar' (ribbon button) instead, which sends you an invitation you accept.
- 4Test on outlook.office.com first; the delegate flow is simpler there and rules out local cache.
When to bring us in
For exec or PA delegate setups, a mailbox delegate setting is usually involved; let us configure it.
See also
- Outlook crashes or freezes on large attachmentsUsually the mailbox cache is the culprit, not Outlook itself. Shrinking or relocating usually helps within ten minutes.
- Teams: they cannot hear me, or I hear nothingIn our experience Teams usually picked the wrong audio device after a Windows update or a new headset.
- OneDrive has stopped syncingThe cloud icon is grey or has a warning. Locally changed files are not showing up for colleagues.
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