The short answer
A wedding weekend has parts — rehearsal dinner, ceremony, reception, farewell brunch — and not everyone's invited to all of them. Use sub-event RSVPs so each guest only sees the parts they're invited to, and you get an accurate count for every room.
List each event with its own time and venue. Invite guests per event, and collect a separate RSVP for each. It all lives on one invitation page — no confusing forwards or duplicate links.
Frequently asked questions
How do I invite some guests to only part of the wedding?
Use a tool with sub-event RSVP. Bloomvite lets you choose who's invited to the ceremony, the reception, or both — guest by guest — and tracks each RSVP separately.