Restore messages to my iPhone
How do I restore messages to my phone after I deleted them on iMessage from iCloud
[Re-Titled by Moderator]
iPhone 11 Pro Max, iOS 13
If you had messages in iCloud turned on Keep all your messages in iCloud - Apple Support and those messages were deleted, then they are permanently gone. If that feature wasn't turned on, you can restore from a backup -- Restore your iPhone, iPad, or iPod touch from a backup - Apple Support.