iCloud only sync new SMS/MMS and iMessages across.

It's a good idea to sync messages from iPhone to iPad with iCloud, but please note that there are some drawbacks to doing so: Way 2: How to Get Text Messages on Both iPhone and iPad Using iCloud Sync

Definitive Guide: Find Hidden or Deleted Messages on iPhone 13/12/11/X/8/7/6.

How to Transfer Photos from iPhone to iPad Easily (iPad Pro/Air/mini Included).

When your source phone receives messages, they'll be synced to your iPad automatically.

The target device is empowered to receive texts from this iPhone.

Choose your iPad as the destination device to receive the incoming text messages.

Head to iPhone's 'Settings' > 'Messages' > 'Text Message Forwarding'.

Check whether both your iPhone and iPad are using the same Apple ID.

How to import messages from iPhone to iPad Pro/mini/Air/4/3/2 with Settings? (Can I unlock Apple ID without a phone number if I forgot it?) To start with, make sure both your iDevices are logged in with the same Apple ID and the 'Send & Receive' option is enabled. The 'Text Message Forwarding' feature from Settings serves as a great medium to send messages to an iPad from an iPhone.

Way 1: How to Sync Messages from iPhone to iPad via Settings

Additional Tips: How to Sync Other Data from iPhone to iPad.

Way 4: How to Get Messages from iPhone to iPad by AirDrop.Way 3: How to Sync Old Messages from iPhone to iPad with iTunes.Way 2: How to Get Text Messages on Both iPhone and iPad Using iCloud Sync.Way 1: How to Sync Messages from iPhone to iPad via Settings.

How to link ipad and iphone messages