Event Window Check-in Tab - large groups
When opening a group event with a large number of participants, the booking list displays no problem, but switching to the check-in tab takes up to 3 minutes to display the list.
This is specific to events with at least 80 people and up to many hundreds. These are not actual events, but one day sales. We tick the check in box once the customer has redeemed the offer.
Anyway to resolve the lag?