Can't remove items from my cart and can't check out

alphabet12 20 Reputation points
2026-07-31T03:04:26.3966667+00:00

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I've been getting these error messages all day. I'm trying to buy a refurbished surface pro 12-inch, and a surface pro keyboard, but when I try to delete previous items from my cart, I get one of these error messages. I've tried other devices, browsers, reloading the page, and logging in and out, but nothing is working. I contacted support and they couldn't help me either.

Surface | Other
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Answer accepted by question author

S.Sengupta 31,831 Reputation points MVP Volunteer Moderator
2026-07-31T04:41:10.79+00:00

That error code (CASMicrosoftCV...) is a generic Microsoft Store/Commerce backend failure — it's their cart/checkout service choking, not something on your end.

Don't try to delete the old items again.

Instead:

Open a private/InPrivate browser window.

Sign into your Microsoft account.

Go directly to the Surface Pro 12-inch refurbished product page, rather than opening your existing cart.

Try Buy now or add the new Surface directly.

Then add the Surface Pro keyboard.

Microsoft explicitly supports purchasing hardware through its online Store from the product page.

You may also try a different Microsoft account.

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