Can Apple phones and tablets use app accounts to send messages to tablets?

Both Apple mobile phones and tablets use apple id accounts, and the information sent by mobile phones can be viewed through tablets.

The operation is:

Step 1: Click the "Settings" icon on the desktop.

Step 2: Open "imessage":

Step 3: Enter an Apple account and click the "Login" option.

Step 4: After the system is verified, it shows that iMessage is activated and turned on:

Step 5: Click the "imessage" icon on the desktop.

Step 6: Click the blue plus sign icon in the upper right corner to open the address book on the iPad and select the contact who wants to send instant messages:

Step 7: Enter the information content and click Send.