Send a message to the group discussion You must join group discussions before sending messages to them. All discussion members see messages sent to the group discussion. Tap . Tap a group discussion from your chat list that you are a member of and joined. Type your message (maximum 1000 characters) and complete one of the following actions: Send regular messages: Tap Send. Send high priority messages: Press and hold . Tap Send as high priority. The message appears in orange in the group discussion. Note: If a message fails to send, tap the message and tap Resend message. Messages sent to a group discussion are persistent and can't be deleted.