Need to add members to a Google Group.

Google Groups.

1. Sign in to Google Groups. Click the name of a group.
2. On the left, click Members.
3. At the top, click Add members.
4. Enter the email addresses of the people to invite.
   NOTE: @terpmail.umd.edu is considered external to UMD.
   
   • To accept members outside of UMD, the Google Group's Settings need to be adjusted/set to accept members. 
   • A Group manager (a Manager in SIMS) would need to go into the Settings and set Allow external members to On.
   • By default, all UMD Google groups are created with the default being Off for Allow external members.
5. (Optional) To add a welcome message to the email notification for new members, enter a message.
6. Click Add members. The members are added to the group, even if their names don't appear on the group member list immediately.

NOTE: If you try to add a user to a group and get an error message saying that their email address is the primary, secondary, or alternate address of an existing member, that user is already a group member. Summarized from Google instructions on how to Add people to your Group Directly.