That was the issue faced by Sainsbury’s over the weekend as it was plunged into crisis media management mode.

An overnight software update meant the “vast majority” of the supermarket’s online orders couldn’t be fulfilled on Saturday.

And the glitch also caused some stores to be unable to accept contactless payment, with customers having to resort to using a physical bank card or cash to buy goods.

To read the original article this audio blog was created from, click here.

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