Address Check
Also called: postcode check, address validation.
The check on an order's delivery postcode: it must be in UK format and, except for Northern Ireland's BT postcodes, listed and still in use in the ONS Postcode Directory. A postcode that fails holds the order as Address problem; streets and house numbers are left to the carrier.
Where you’ll see it
As the Address problem hold under an order in Orders, and as warnings on the Enter an order form.