Hi,
I would like to suggest having an allergen warning display (like a little warning triangle) per product at the checkout screen, so the operator can see that that product has allergens (for example if something has oats in or soya or gluten etc..) and then a little pop up showing what allergens that product has.
With Natasha's Law being so prevalent in the UK now, this would be a big help to avoid unnecessary incidents or even death if the allergy is severe.
Thanks,
Square Community