To Invite new users follow these steps; 

Step 1: Go to: the Settings Icon > Organization Settings > Users & Groups

Step 2: Click on the Green "Invite User" button

Step 3: Enter the new users email address 

Step 4: Select the User Role for the new user. (Quality / Normal / Basic) For more information on User Roles click Here

Step 5: Click the "Send Invitation" button

Keep in mind that the default expiration time for an invitation is 14 days.

To re-send invitations, follow these steps;

If you need to re-send an invitation, 

Step 1: find the user in question under Users & Groups.

Step 2: Click on the user's name and you will be brought to their profile.

Step 3: Click "Resend"

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