Settings, then Local delivery, then Validation: how No validation, Exact postal code match and Partial postal code match decide who can choose local delivery, and Advanced postal code match for patterns

The three Google Maps methods (Customer within maximum radius, Customer within maximum driving distance and Customer within a custom-drawn zone), and adding your Google Maps API key

The Delivery validator widget: a "Do we deliver?" bar at the top of your store, its Added or Not added badge, Design settings and Preview in theme

Adding Eligible postal codes to a location with Add postal code

What customers see in the "Do we deliver?" bar, the cart and checkout when their postal code is or isn't on your list

After you save a postal code method, open each location in Locations, select Show settings under Local delivery, and add its Eligible postal codes.

Give each location its own codes, with no overlap. A location with no codes doesn't deliver anywhere.

Partial postal code match accepts any code that starts with one you list, so 112 covers 11211 and 11222.

The three Google Maps methods need a Google Maps API key: select Google Maps API key in the Validation card, check Enable Google Maps Integration, paste your key, then select Validate and Save.

If a customer says you don't deliver to them, check the location's Eligible postal codes first.