When you back up your messages to iCloud, your messages are stored in iCloudand backed up along with the rest of your data. If you delete a message on one device, it’s deleted on all of your devices.
To back up your messages to iCloud:
1. Make sure you’re signed in to iCloudwith the same Apple ID on all of your devices.
2. On your iPhone or iPad, open the Settings app, then tap iCloud.
3. Scroll down and tap …
