How do I invite a friend to a KakaoTalk Calendar event?
From KakaoTalk Calendar, go to [Create Event > Invites] and select a friend or a chatroom.
Or, click ['+' icon > Event > Create Event] in a chatroom and create an event to invite all chatroom participants.
Or, click ['+' icon > Event > Create Event] in a chatroom and create an event to invite all chatroom participants.