I did notice that the group messaging option is missing on the first day I got my Lumia 928. I used to have Lumia 920 on AT&T and I'm 100% sure that there is a group messaging option.
However, the group messaging function still works fine for me. I can send one msg to multiple people and all their replies come back in that same dialogue thread. Everything in terms of group messaging works exactly the same as Lumia 920 does.
However, the group messaging function still works fine for me. I can send one msg to multiple people and all their replies come back in that same dialogue thread. Everything in terms of group messaging works exactly the same as Lumia 920 does.