Groups and distribution lists are ways to manage and communicate with multiple users in your Microsoft 365 tenant. A group is a collection of users who share a common purpose, such as a project team or a department. A distribution list is a mailing list that allows you to send email messages to multiple recipients at once. The main difference between groups and distribution lists is that groups have more features and functionalities than distribution lists. Groups can have shared resources, such as a mailbox, a calendar, a SharePoint site, a Planner plan, a Teams channel and more. Distribution lists only have an email address and a list of members.

Creating a Microsoft 365 group

To create a Microsoft 365 group in the admin center, follow these steps:

1. Go to the Admin Center and sign in with your admin account.
2. In the menu on the left side, go to the Groups page and click on Add a group.
3. Choose the type of group you want to create: Microsoft 365
4. Enter the name, description, email address and other settings for the group.
5. Add members to the group by typing their names or email addresses in the Members box.
6. Click on Create group to finish.

Creating a Distribution List

To create a Microsoft 365 Distribution List in the admin center, follow these steps:

1. Go to the Admin Center and sign in with your admin account.
2. In the menu on the left side, go to the Groups page and click on Add a Distribution List.
3. Choose the type of group you want to create: Distribution
4. Enter the name, description, email address and other settings for the distribution list.
5. Add members to the distribution list by typing their names or email addresses in the Members box.
6. Click on Create group to finish.

For more information on how to create and manage groups and distribution lists in the tenant, you can visit the Microsoft Learn documentation for creating Groups in Microsoft 365.