https://developer.apple.com/documentation/apple_pay_on_the_web/applepaypayment/1916097-shippingcontactBefore the user authorizes the transaction with Touch ID, Face ID, or passcode, you receive redacted address information when onshippingcontactselected is triggered. Although the address is redacted for privacy, it includes sufficient information for you to compute taxes and shipping costs and refresh the corresponding values and total in the payment sheet.SW1E is the first part of the postcode. The rest of it is hidden / redacted in onshippingcontactselected.After the user authorises the transcation, you get access to the full address.