However, any deliveries for September will allow customers to add the M&S items to their basket, while Waitrose products will display the out of stock alert.
M&S is also hoping to match its predecessor on price points, with some products even costing a little less to help shoppers save money.
The “Remarksable Value” selection will include sliced bread with added fibre and vitamin D for 65p, 100 percent free range eggs at 90p and responsibly farmed Scottish salmon at £4 for two fillets.
The new offering joins its Cook With M&S range, which offers quick solutions for easier home cooking, and its expanded vegan Plant Kitchen range.
source: express.co.uk