Amazon's 'This item cannot be shipped to your selected delivery location. Please choose a different delivery location. '

I've seen quite a few of these. Never managed to resolve a purchase on items with this message tho'.
I have contacted Amazon via the live chat a few times using this route...

Amazon homepage --> Customer Service --> Something else --> Contact us --> type the word 'adviser' in the "Tell us more about what you need..." area --> hit send / enter / return

...to try and get an order placed. It usually turns out to be an incorrect stock status and when you try and order "computer says no".

Check your default delivery location, maybe that is different.
I had similar error last week, turns out my default was accidentally set outside UK. (edited)

I think it sometimes has to be an Amazon item & also shipped by them. I have this trouble sometimes when i want it shipped to my local hub counter.

Yeah, only have one address (don't even have a locker or nearby shop fro collection).

Yes, only appears to be Amazon items, not 3rd party. Very strange as something I bought last week now shows this message. And one of the deals this morning where someone else mentioned this message I did a dummy run on and have same message too. Eek. Was hoping it could be a glitch but not looking likely.

I had this last week, I just updated my address (it was the same) in my account settings and that fixed it.
I think the problem was that I was sending to a first initial + surname rather than a full name, which wasn't allowed when I updated. (edited)

often get this... even lockers are verboden !
Funnily enough, not an issue if you have prime

Sometimes happens if really small or bulky. Small will be delivered by royal mail.

I think it's some sort of inventory bug - but I've also seen this alert happen when an item has been available to buy then later went out of stock.

Sometimes emailing (whoever you email now, apparently jeff at amazon dot com doesn't work) allows you to buy it - well - that's what happened when I wanted to purchase a watch showing that error. A day after emailing, I was able to put an order in.

(I'm talking about an account with an address book that has tried and trusted email and payment details in it, though - not sure about genuine address errors when it's a newer one).

Only used Amazon Locker / pick up once or twice when the £5 promo was live (before Xmas), and it's true enough, if it's too big or bulky for that destination you get that error too. (edited)

Those of us living in Northern Ireland are continually receiving this notification when attempting to purchase as a result of the Windsor Framework and that Northern Ireland still resides within the EU single market.

If your address is correct, it means OOS