Yes, you can absolutely share the PostUP QR code before the event day. Many schools and organizations share the QR code days or even weeks in advance, allowing participants to submit baby pictures, senior photos, throwback content, and other meaningful images ahead of time. This ensures you have a robust collection of content already approved and cycling through the display when your event begins. For graduations specifically, you could share it during senior dinners, decision days, or other pre-graduation events to build up content. When the main event starts, you'll already have engaging photos ready to display while continuing to accept new submissions in real-time.
