The Chat tab will display the list of chat groups that you are part of and all the open and closed groups that are in the spot but you are not a part of it yet. You will not find any private group in your group list as these are hidden groups.
To join a chat group, follow the steps below:
1. Go to Chat and click on Join Group2. Click on the Join button to become a part of the open groupYou will now have access to the group
1. Go to Chat and click on Join Group
2. Click on the Request Join button to become a part of the closed groupOnce the admin has approved your join request, you will have access to the closed group
The only way you can be a part of a private group is when the admin adds you to the group
When an admin adds to a group (open, closed, or private) you will be notified via an email, SMS or app notification.