Log in as admin and create a course with 4 students and 2 groups (group 1 and group 2) - place all 4 students in each group. Enable group messaging for the group via the group edit page. Now, log in as student 1 and open the messaging pane Search for student 2 and send them a message On the conversation view, click the ellipsis menu (...) and select 'Add to favourites' Search for student 3 and send them a message Open the second group conversation and add to favourites via the ellipsis menu (...) Log out. Log in as student 2 and reply to the message from student 1. Log out. Log in as student 3 and reply to the message from student 1. Log out. Log in a student 1 Open the messaging pane Expand all each section and click any conversation with unread counts until there are none left. Refresh the page and open the messaging pane. Verify you have the following counts: Favourites: 2, Group messages: 1, Messages: 1 Verify the 'Favourites' section is expanded Open the favourited conversation with student 2 and remove from favourites. Open the favourited group conversation (group 2) and remove from favourites. Refresh the page and open the messaging pane Verify you have the following counts: Favourites: 0, Group messages: 2, Messages: 2 Verify the 'Group messages' section is expanded Log out. Log in as admin user again and go the course Edit the second group and set 'Group messaging' to 'No' Go to the admin section of the site and select 'Browse list of users' Find student 2 and click the trash icon to soft-delete this user. Confirm the action. Log out. Log in as student 1. Open the messaging pane. Verify you have the following counts: Favourites: 0, Group messages: 1, Messages: 2 Verify the 'Group messages' section is expanded and you only see one conversation - group 1 Expand the 'Messages' section Verify you see 2 conversations - one with student 2 and one with student 3. Click the conversation with student 2. Verify you see the message from student 2 Verify you are unable to message this user and see a message on the view 'You are unable to message this user'. From the ellipsis menu (...) select 'Delete conversation' Refresh the page Open the messaging pane Verify you have the following counts: Favourites: 0, Group messages: 1, Messages: 1 Expand the 'Messages' section Verify you only see 1 conversation - the conversation with student 3.