TESCO’s website and app is down leaving shoppers unable to access their accounts and amend orders.
Shoppers have claimed that they have been unable to process online orders from around 2.30pm.
By 3.25pm, the number of reported outages with the app and website had reached 669, according to Downdetector.
One unhappy shopper posted on Twitter and said: “@Tesco your website is down showing error 500 and won’t let me add to my grocery order.
“The rest of the website works it’s just when you try and edit the basket.
“My order is due tomorrow do you know when this will be fixed?”
Another said: “@Tesco Is your website down? Trying to amend my order but I keep getting error messages.”
“So @Tesco are having a nightmare with their technology AGAIN. Can’t make changes to my order.
“If it’s not them cancelling my order with no notice, it’s their self-scanners breaking down or their website and app not working,” said a third shopper.