If one of your coworkers can't find their invite or you notice that they haven't signed in yet, you can always resend their invite email from the Employees page (Settings > Manage Employees).
Anyone who has been invited and hasn't signed in yet will have a "Resend Invite" button to the right of their name, or you can choose the Invite button at the top of the page to resend invites to everyone who hasn't signed in yet by selecting "Resend [number of] Invites".
Tip: You can always customize or update your invite email from the Settings page if there's specific information you need to share with the people you're re-inviting.
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