Exclude Invitees in Next Send
After you first run an invitation process, you can continue to run the process to send additional invitations. When you run the process again, you can exclude invitees sent the invitation or those who decline to attend the event. To exclude an invitee from a future instance of the invitation process, on the Invitees tab of an invitee list page, select the down arrows next to the invitee to exclude from next send and select Exclude from next send on the action bar. After you first run the invitation process, the program marks all invitees as Exclude from next send.