--- displayed_sidebar: fulfillmentReference --- import { TypeList } from "docs-ui" # UpdateServiceZoneDTO The attributes to update in the service zone. `","description":"Holds custom data in key-value pairs.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"city","type":"`string`","description":"The city of the geo zone.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"postal_expression","type":"`Record`","description":"The postal expression of the geo zone.","optional":true,"defaultValue":"","expandable":false,"children":[]}]}]} expandUrl="https://docs.medusajs.com/learn/fundamentals/data-models/manage-relationships#retrieve-records-of-relation" sectionTitle="UpdateServiceZoneDTO"/>