In the Messages app, you can send text messages in two different ways:
Using iOS and iPadOS Feature Availability website.
Go to Settings > [your name] > iCloud, then tap See All next to Saved to iCloud.
Turn on Messages (if it’s not already turned on).
After you turn on Messages in iCloud, any messages or attachments you delete from iPad are also deleted from your other Apple devices (iOS 11.4, iPadOS 13, macOS 10.13.5, watchOS 1, visionOS 1, or later) where Messages in iCloud is turned on. See in the top-right corner.
Tap Set Up Name & Photo, turn on Name & Photo Sharing, then change any of the following:
Your picture: Tap Edit below the circle, then choose an option. Your photo can be a Memoji, emoji, or custom image.
Your name: Tap Name.
Who can see your name and picture: Tap Share Automatically, then choose an option.
To change your name, picture, or who can see them after you set them up, tap Edit or Change message notifications on iPadiPhone User Guide: Choose other devices for SMS, MMS, and RCS messaging