What it’s for
Instead of picking the same eight people every time you send a transmittal, you make a group called “Owner and design team” once and pick that.1
Create the group and name it for its purpose
Name it after the job it does — “Submittal reviewers,” “Owner monthly” — not after the people in it. People change; purposes don’t.
2
Add the members
Employees and external contacts both. → Employees vs. External Contacts
3
Check which modules use it
Some modules will use a group automatically once it exists.
Next
Send Mail
What actually went out, and to whom.
Employees vs. contacts
The most common setup mistake.