Free Busy option not showing in Apple Calendar on iPhone 17 with Exchange

I'm using iOS 27 on an iPhone 17, and the Free Busy option is not showing using Apple Calendar to connect to Microsoft Exchange-based calendars. I've tried removing the connected calendar from my iPhone, to no avail. I've tried searching the Apple Community for solutions, but have only come back with unanswered threads.

Posted on Nov 9, 2026 7:20 AM

1 reply

lobsterghost1

Level 10 (233,174 points)

Nov 9, 2026 7:34 AM in response to bruce.kozuma

I have never used this feature, but an AI search provided the following, which I haven't tested, so cannot confirm it will resolve your issue. Give this a try:

"To connect an iPhone to a Microsoft Exchange calendar for free/busy scheduling, you must add the Exchange account directly to iOS settings rather than using a third-party "free/busy" tool, as iOS natively syncs availability via the Exchange protocol.

Add Account: Go to Settings > Apps > Calendar > Calendar Accounts (or Settings > Calendar > Accounts on older iOS versions), tap Add Account, and select Microsoft Exchange.
Authenticate: Enter your Exchange email and password. iOS will typically auto-detect the server settings; if prompted, enter your Outlook Web Access (OWA) address.
Enable Calendars: Ensure the Calendars toggle is switched On during setup.
This enables two-way sync, allowing your iPhone to report your availability to colleagues and view their free/busy status via the Scheduling Assistant in Outlook or Apple Calendar."