Why do I need to choose a slot before I place my online groceries

Christmas supermarket delivery slots 2023: How and when to book deliveries for Tesco, Sainsbury's and more

Tesco's website states: We're experiencing high demand for slots around Christmas Currently shoppers can book a click & collect slot or a

sainsburys book a slot Book Delivery · Delivery Pass Back start shopping 1Please enter your postcode using the box on the right 2Register & choose a 1 hour delivery slot

sainsburys delivery slot Book Delivery or Collection When you select book delivery you will have the Your slot will be held for 2 hours, continue to checkout Step 5