Adding people to a group text
How do I add people to an existing group text on the XR?
iPhone XR
Question marked as
See this, Send a group message on your iPhone, iPad, or iPod touch - Apple Support However understand that if anyone in the group is a non-iOS user, you will not be able to add to or remove any users from the group message, because it is not an iMessage, it is an SMS/MMS. Only iMessage can add or remove users.