What's OnWhat's On NewsTescoThe Tesco change will come into play next week15:00, 09 Jul 2026Everything you need to know:Tesco is doubling the advance booking window for its online grocery service from four weeks to eight weeks over the summer. The supermarket says the change will help customers plan ahead during one of its busiest times of the year.More than 1.1 million online grocery orders are placed with Tesco every week across the UK. The extended booking window is designed to support shoppers during the school holidays and ahead of the August bank holiday.Priority customers will be able to book delivery and Click+Collect slots from July 14. General booking will open to all customers from July 21.The new eight-week booking window applies to both Home Delivery and Click+Collect services