The coupon scheme will use historical data from the Nectar card database and transactional data to reward shoppers with targeted money-off vouchers for products in their usual shopping basket.
Customers will be rewarded with coupons that give up to 20% off branded and Sainsbury’s own brand products.
The supermarket is offering the vouchers to all its customers, not just those that hold a Nectar card.
Brands including Unilever, Heinz and Proctor & Gamble have signed up to the programme.
The scheme is Sainsbury’s biggest investment in customer loyalty since the launch of the nectar card in 2002 and marks a “multi-million pound investment over five years” and it estimates that over one billion coupons will be given out.
The scheme has already been trailed in 150 stores and will roll out across all Sainsbury’s 535 stores by November.
Gwyn Burr Sainsbury’s customer director says: “We know that 50% of shoppers take coupons and vouchers with them when they shop, and it’s a really practical way for people to stretch their budgets, especially in the current economic climate.”
The move follows Tesco’s introduction of double club card points earlier this year which gives Clubcard holders double reward points across all purchases in store.