You can share a fully editable calendar via iCloud with others in your family or at work, school, or in a group so you can have a collective place to coordinate appointments and share information about them. But it’s a double-edged sword: if someone else can edit a calendar you share, they can, usually unwittingly, delete or edit events.
My family shares several calendars between us, including those that my spouse and I share for work and personal planning. The other day, I got a text from my partner, “Why did you edit this event I did?” about a date that belonged only to her. Me: “I didn’t! Oh, I was trying to swipe to add an event on my calendar, and I kept typing that one. But I used Undo! However, she received a notification that it had been modified.
There’s a simple solution: if you don’t need another person or people to edit your calendar (or vice versa), you can mark it as read-only on an individual basis (repeat below for each individual) :
- On macOS: In the Calendar app, click the “person in a circle” icon to the right of a calendar name in the left sidebar. (Picking out View > Show Calendar List if calendars aren’t visible.) Click a person’s name under the Shared With list. From the context menu, choose Show only.
- On iOS/iPadOS: In the Calendar app’s main view, tap Calendars, then tap the i information icon to the right of the calendar name. In the Shared with section, tap a person’s name, then turn off Allow editing.
- On iCloud.com: In the Calendar web app, click the radio wave icon to the right of the calendar name. (It’s unclear why Apple hasn’t standardized its icons.) In the Shared Calendar Information pop-up window that appears, click the person’s name and choose Show only. Click on OKAY.
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