You can’t add or remove people from group mms messages or group sms messages.
How to add someone on imessage. Choose the person you want to be added to the group chat. Select the conversation you want to add an individual to and tap to open it. Tap on the group’s name at the top of the screen.
Tap on the new message icon. Tap the group message that has the contact you want to remove. You can remove a person from a group imessage that has at least three other people.
Enable imessage in settings, make sure that friend has it enabled to. Ask his phone number or email address which he uses for imessage. Open the group that you want to manage in the messages app.
Here, type the name of the person you want to mention as it appears in your contacts. From your iphone, locate the messages app and tap to open it. An info icon will appear;
Adding people on the imessage group chat. If asked, sign in with the apple id that you're using with messages and facetime on your iphone. At the bottom of the group list,.
Tap on the + (add) symbol. Tap , then tap add contact. Anyone in a group imessage can add or remove someone from the conversation.