Go to Survey Status and click on the graphic (green=sent invitations, orange=undeliverable). Or, if you are already on View All, click the Invitations tab. Either route gets you to the area to resend surveys.
Find the individual you want to resend the invitation to and click the Resend Invitation button.
Review and make any necessary edits, and click the Save & Resend Invitation button.
Invitee didn't receive the survey invitation? Go to the dashboard > Survey Status tile and click the orange graphic portion for a list of individuals who's invitations were undeliverable. Click the Resend Invitation button and edit the email address, then click Save & Resend Invitation button.