Huge mistake made how do i undo it?

Take a breath — this is fixable. RSVPs don’t actually create invitations. They’re just responses to invitations that have already been sent. If you were using an online RSVP system or wedding website and accidentally clicked their names while managing responses, you can remove them from the guest list or mark them as not invited/declined. If these people never received a formal invitation, you’re not obligated to host them. And even if an invitation was sent by mistake, a short, firm correction is appropriate and completely acceptable. It’s much easier to fix this now than to carry the stress forward — and you’re allowed to protect your peace on your wedding day.

I’m glad it helped. For extra peace of mind, you might consider having a trusted person at the entrance with a guest list. A wedding and reception are private events, and it’s okay to quietly turn away anyone who wasn’t invited.

And just to ease your mind — this doesn’t mean you have to hire security if that idea is stressing you out. A friend, family member, or coordinator can handle this discreetly so you don’t have to be involved at all.

The goal isn’t confrontation; it’s simply making sure the people who were invited are the ones attending, so you can relax and enjoy your day.

I’d correct it sooner rather than later. Since it was an accidental RSVP and you’re no-contact for valid reasons, you’re allowed to undo it. A short, neutral message like “I’m sorry, there was a mistake with the invitation and we’re keeping the wedding very small” is enough — no explanations or reopening old arguments.

Since you only clicked them in the RSVP manager, you didn’t “invite” them in any real sense. Just remove them from the guest list or mark them as not invited/declined, and don’t send anything further. If you’re worried they’ll still try it, have one trusted person at the entrance with the list so you never have to deal with it.