Colab has two types of messages.
Direct message groups are with one or more Colabs. The messages can be started with any of your Colab’s at any time. Additional Colabs can be added to existing message groups.
Project message groups are between project members only. The only way to add more Colabs to the group is by adding them to the project.
Each time you receive a message in either group, you’ll receive a notification.
At the top each message group is a header which contains the project name and the profile images of each project member. Tapping on this will open up a new screen which allows you to view every sent image in the project message group, allow you to email a transcript of the chat and see a list each project member.