How to Fill Address Line 1 & 2 on Shein, AliExpress & Amazon

What goes in Address Line 2? Learn when to use it for apartment, suite, unit, or floor numbers on checkout forms—and when you should leave it blank.

Address Line 1 is the primary required field on checkout and shipping forms. Learn what to put (street address and house number) with clear visual examples.

What goes in Address Line 1 vs Address Line 2? Clear breakdown: Street address & house number in Line 1; apartment, suite, or unit in Line 2 (or leave blank).

Stuck on a checkout form asking for State or Province? Learn what to enter for countries like the UK, UAE, Pakistan, Singapore, and Romania.

Stuck on a required State field for a country with no states like the UK, Singapore, or UAE? Learn how to fill or bypass mandatory State/Province inputs.

Stuck on City, Suburb, or District fields on international checkout forms? Clear guide on what to enter depending on your country (US, UK, Australia & more).

Confused between billing address and shipping address at checkout? Learn why they differ, when they must match your card, and how to fill them correctly.

Can you enter a PO Box in Address Line 2? Discover when to put PO Box in Line 1 vs Line 2, and why FedEx/UPS reject PO Box deliveries.

Where does the apartment number go? Learn USPS standards for Apt, Suite, Unit, and Floor numbers on envelope labels, Line 1 vs Line 2, and checkout forms.

What does c/o mean in postal addresses? Learn how to format 'care of' on envelopes and shipping checkout forms when sending mail via another recipient.

How to enter a valid US billing address for Apple ID, Google Play, and digital stores. Real street examples, valid ZIP codes, and 0% sales tax states (Delaware, Oregon).

Does Dubai or the UAE have a ZIP code? Learn how to fill mandatory postal code fields for UAE shipping addresses on Amazon, Shein, and DHL.

Master the UK postal address format: Learn how to format building numbers, street names, Post Town (in capitals), and Royal Mail postcodes on shipping forms.

APO, FPO & DPO Military Addresses in Checkout Forms. Use the exact unit, PSC or CMR and box supplied by the recipient.

W-9 & W-8BEN Address Fields: Residence vs Mailing Address. W-8BEN line 3 must identify your actual tax residence, not a PO Box.

Fix Billing Address Mismatches: AVS, Stripe & PayPal. Check the billing street number and ZIP against the issuer’s current records.

International Shipping Addresses for DHL, FedEx & UPS. Check each field’s actual limit; UPS WorldShip address fields allow 35 characters.

Canadian Addresses & Postal Codes in US Checkout Forms. Use the recipient’s real postal code, not the A1A 1A1 pattern.

Japanese Addresses in English: Romaji & Seven-Digit Postcodes. Use the recipient’s supplied romaji spelling rather than inventing a street name.

Ireland Address Format: Counties, Eircodes & Online Forms. The first three characters are the routing key, not a county abbreviation.

German Addresses: House Numbers, c/o & DHL Packstation. Keep Straße and Hausnummer in that order, including any letter suffix.

Gate Codes, Buzzers & Delivery Notes: Address Line 2 Rules. Keep the unit number in the postal address even when you also give instructions.

Registered Agent vs Business Mailing Address on Forms. Read whether the field requests a registered office, physical location or mailing address.

Saudi National Address & SPL Short Address Format. A Short Address has four letters and four digits. Use your registered SPL details, including district and city.

South Korea: English Road Name Address & 5-Digit Postal Code. Use the current five-digit postcode, retaining leading zeros. Preserve building (-dong) and apartment (-ho) identifiers.

Australia: PO Box, Parcel Locker, State Abbreviations & Postcodes. Write suburb, state abbreviation and four-digit postcode together. A PO Box and a Parcel Locker are different delivery services.

Mexico Address Forms: Colonia, Calle, Exterior/Interior & Código Postal. Calle is the street; número exterior is the building number. Preserve all five postal digits, including leading zeros.

Hong Kong Address Without a Postal Code: Checkout Form Fix. Hong Kong does not operate a local postcode system. 00000 and 999077 are not Hong Kong postal codes.

Italy: Via/Piazza, CAP Postal Code, Comune & Province. Write Via or Piazza, street name, then house number. Use the correct province: examples include RM, MI, NA, TO and FI.

Spain: Calle, Número, Piso, Puerta & Código Postal. Calle is the street and número follows the street name. Put the postcode before the locality on an envelope.

Netherlands: Postcode 1234 AB, House Number & Addition. A postcode has four digits and two uppercase letters. Copy huisnummertoevoeging exactly as registered.

Switzerland: Four-Digit PLZ / NPA / CAP Address Format. PLZ, NPA and CAP are language labels for the postal code. Do not append internal database postcode additions to the label.

What Is a ZIP+4 Code? Nine-Digit ZIPs in Checkout Forms. ZIP+4 has five digits, a hyphen and four more digits. Follow the form’s five-digit or ZIP+4 instructions.

Sources and scope of the institution-backed postcode and locality examples used in the Croatia country and city guides.

Institution and published visitor-address sources for the selected examples.