1. Go to Administration > Users (https://app.heymarket.com/admin/team) and click "Add Members" at the top right of the screen:
Note: Only account Owners and Team Administrators can add members.
2. Type in the emails of the users you want to invite. If adding multiple users, click the checkbox to add additional emails:
3. Click "Save" to send out the invite emails:
4. After the invited user signs up for an account, then go to your Inbox (https://app.heymarket.com/admin/inboxes) and click the Person icon with the plus sign to add them to the appropriate Inbox: