Feature suggestion: a red flag or alert if price paid is WAY too low?

I made a mistake on a discount in booking.com and somehow it was set to 90% discount instead of 10% discount. I think it was for non-refundable better price, do not remember the specific discount name. A guest booked a place for $6 or $7 a night instead of $60 - $70 a night. It was from a discount set in Booking.com. I had thought that minimum pricing set in dynamic pricing would prevent prices from ever going below that minimum. I did not realize that promotions or discounts from Airbnb, VRBO or Booking.com get applied to the minimum, and can result in pricing less than the minimum.