It is way to easy to send the message duplicate times. You should have a function that allows you to send the invite once and then again to whoever doesn't rsvp.
|Which sport(s) does this apply to:||Lacrosse|
Good idea! You can get a list of those people that are attending and step through each that hasn't responded yet and resend the invite. However, as you say, it would be more efficient to just have a list of those that are still to respond. I'll forward the suggestions on to our product team.