Office 365 Groups
With the introduction of Microsoft Teams, CCS will no longer be creating new Microsoft Groups as Teams offers the same functionality as Groups. Users can create their own Teams rather than putting in a request. Users with existing Groups are encouraged to switch to Teams or they may continue with their already created Groups.
More information on Teams as well as how to create Teams can be found here: https://www.uoguelph.ca/ccs/office365/getting-started/what-is-office365#teamsCollab
What are groups?
Groups in Office 365 let you choose a set of people that you wish to collaborate with and easily generate a set of resources for those people to share. You don’t have to worry about manually assigning permissions to all those resources because adding members to the group automatically gives them the permissions they need to the tools your group provides. Additionally, groups are the new and improved experience for what we used to use like distribution lists or shared mailboxes would do.