Step 1
Go to https://portal.office.com/
Step 2
Enter your Global Administrator Email Address and click Next
Step 3
Enter your Password and click Sign in
Step 4
Click Yes to stay signed in
Important Note: If you are asked to either sign in with Work or School Account or Microsoft Account, Please select Work or School Account
Step 5
Click the waffle icon (Nine Dots) then click Admin (If admin isn't listed click All apps)
Step 6
Click Teams & groups
Step 7
Click Active teams & groups
Step 8
Click the Group to want to add the members to
Step 9
Click Members
Step 10
Click View all and manage members
Step 11
Click Add members
Step 12
Search for the members you want to add
Step 13
Tick each member you want to add, then click Add
Step 14
The member has now been added to the Distribution Group