Who I have the same questioned this topic

Hey, I'm new to android and Message+. I need help with figuring out my group messages. Currently I receive group messages fine, they are grouped as expected. But when I send a message out in group text, it appears to the recipients as individual private messages. I see a message sent out n times (n=amount of people in group chat).

How can I fix this so that my messages are sent to the group and not multiple private messages?