Use the event description for practical details. Include parking instructions, which entrance to use, whether to bring anything (a bottle of wine, a side dish for a potluck), and the general dress code. This prevents 6 individual "where do I park?" texts the day of.
Dietary restrictions are non-negotiable. For a dinner party, knowing that one guest is vegetarian and another has a nut allergy changes your entire menu plan. Collecting this during the RSVP — not 24 hours before when you have already shopped — is the difference between a thoughtful host and a scrambling one.
Set a short RSVP deadline. Dinner parties typically have shorter lead times than larger events. Set your deadline 3-4 days before the dinner so you can shop and prep accordingly. Send one
reminder to non-responders 24 hours before the deadline.
Read the guest messages. Dinner party guests often use the message field to mention things like "We will be 15 minutes late — coming from another event" or "Happy to bring dessert." These details help you time your courses and avoid duplicate contributions to a potluck.