Can not open shared notes

Before you begin

1. Update your iPhone, iPad, or iPod touch to the latest iOS, and your Mac to the latest macOS.
2. Set up iCloud on all of your devices.
3. Make sure that you’re signed in to iCloud with the same Apple ID on all of your devices.
4. Upgrade your notes so that you can use the latest features.

Everyone that you share with needs to update their device and notes too.

Use shared notes

You can edit your shared notes just like you do any other note in your Notes app. Then the changes will show up on everyone's device that shares the note with you. And you can tell when someone else has made edits. Look for  next to the note in your notes list.

You can’t share password-protected notes. If you want to share a password-protected note, tap  on your iOS device or  on your Mac and choose Remove Lock.

Add people to a note

Invite someone to collaborate on a note through Mail or Messages. Or copy a link to the note and send it to them any other way you like. Then they can open your note and start editing, just like that.

1. Open the iCloud note that you want to share.
2. Tap or click  .
3. Choose how you'd like to send your invitation.
4. On your Mac, click Share.

Want to know if you're already sharing a note? Look for at the top of your note or  in the notes list.

Manage who you share with

As the creator of a shared note, you control access and only you can make changes. Just tap or click  to see and manage who you're sharing the note with.

If you see Invited below a person's name, then they haven't accepted your invitation yet. You can also choose to remove specific people from a shared note or to add new people.

Add someone new

1. Open .
2. Tap or click Add People.
3. Choose how you'd like to send your invitation.

Remove one person

1. Open .
2. Tap or click the person's name.
3. Choose Remove Access.

Remove everyone

1. Open .
2. Tap or click Stop Sharing.
3. Choose OK.

When you stop sharing a note with other people, the note automatically deletes from their device.

Share your notes - Apple Support

https://support.apple.com/en-us/HT206987