Iphone and ipad accept text messages at the same time. How to cancel?

The reason why the four IPAD of iPhone4 accept iMessage messages at the same time is mainly because iMessage has been opened with the same ID account, and it can be cancelled by turning off the synchronization function.

It is best not to use the same AppleID account for Apple devices, especially for mobile phones, mainly to set up data information of backup mobile phones.

Turn off to cancel the synchronization of iMessage SMS, which can turn off the iMessage function; Click Settings-Information -iMessage, and then turn off the iMessage function of both devices.

Or log in to different AppleID accounts on iPhone4 and IPAD.

Find your iPhone, go to Settings-Messages-SMS Forwarding, and turn off the switch!

Turn off iMessages for iPad. Turn on Messages in iPad settings and turn off the iMessages option, so that you won't receive iMessages again. If you still want to receive the message, but hate to hear the "ding" reminder, then set the "notification sound" to "none" in Settings-Notification-Message. If you don't want to hear a sound or see a new message pop up, then turn off Allow Notification.