If you can't collaborate in the Notes app
Learn where to find the collaborate option in a note in the Notes app on your iPhone or iPad, and what to check if you can't collaborate.
Before you begin
Make sure that you and the person that you want to share or collaborate with both have an iPhone or iPad updated to the latest version of iOS or iPadOS.
Sign in to your Apple Account on your device.
Open the Settings app, tap your name, then tap iCloud. Under Saved to iCloud, tap Notes. Check that you turned on "Sync this [device]".
Find the collaborate option
Open the Notes app on your iPhone or iPad with iOS 18 or iPadOS 18 or later.
Go to the All iCloud folder and find your note.
Open the note, then tap at the top of the screen. If the note is locked, remove the lock first.
Under the note title, you can choose Collaborate or Send Copy. Choose Collaborate.

To change the permissions for the note, tap "Only invited people can edit." Then Choose who can access, permissions, and whether to allow others to invite.

To send your invitation, choose Messages or Mail.
If you still can't collaborate in the Notes app
If the note is locked, unlock the note. You can’t collaborate on a locked note or on a folder with locked notes.
You can only collaborate on notes with someone who also has an Apple device signed in to their Apple Account. If you can't collaborate, you can still send a copy of the note as an email or a message.
Up to 100 people can collaborate on a note in the Notes app. Make sure that you haven't exceeded the collaboration limit.
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