Joke Collection Website - Blessing messages - Why can't iPad send messages to the address book?

Why can't iPad send messages to the address book?

Because there is no sim card on the ipad.

You can only send messages to mailboxes. Ipad settings, information, open iMessage, set up communication account (wifi version can be set as APPLEID email), and after the setting is successful, you can send messages to contacts. When using, the device must be in a networked state, and the person who receives the information is also the person who opens iMessage and connects to the network.