The idea is that Messages in iCloud update automatically on all your devices, so you always have the same messages anywhere you use iMessage, as long as you use the same Apple ID, and the device supports Messages in iCloud. That means if you delete on one device, you delete on all! When your devices including Macs use Messages in iCloud, your Messages and texts synchronize on all devices using the same Apple ID. If you use iOS 11.4 and above on your iPhone, iPad, or iPod AND use macOS High Sierra 10.13.5 and above, you can take advantage of the Messages in iCloud features! Where Are iMessage files stored on my Mac?.

Did an Error Occur During Activation for iMessage or FaceTime on Mac?.

The Complete Guide to Disabling or Deregistering iMessage and FaceTime.

How To Remove Yourself from a Group iMessage Conversation.

Use Terminal to delete your Messages App chat history permanently.

To prevent your Mac from storing your message history, update your Message App Preferences and untick the box for Save history when conversation are closed.

To keep the conversation open but delete the content, choose Edit > Clear Transcript or Option+Command+K.

Delete selections from message threads using a right-click and choosing Delete or Edit > Delete.

Delete an entire conversation with Command + Delete or using File > Delete Conversation.

Change your Message App Preferences to Keep Messages for 30 Days or 1 Year.

Quick Tips Follow These Quick Tips To Delete Texts and iMessages on Your Mac Today

How-To Delete All Your Messages App Chat History Permanently.

Closed a Conversation By Mistake? Or Need to Reopen an Old Conversation?.

But What If You Don’t Want Your Mac To Save Old Conversations?.

Closing and Deleting Conversations are Different!.

Want to remove all the messages without closing the conversation?.

How-To Clear Your Messages Without Closing the Conversation.

How Do I Get My Mac To Delete Messages Automatically?.

Option+Command+Delete Not Working on High Sierra 10.13.5 and above?.

Want a Quick Way to Delete One, Some, or All of Your Conversations?.

How to Delete Texts and iMessages on Your Mac, including Multiple Messages.

How To Enable Messages in iCloud on your Mac.

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