The Delivery Customization API enables you to rename, reorder, and sort the delivery options available to buyers during checkout. ## Example use cases - Hide delivery options for certain products or customers - Reorder delivery options according to user preference - Hide delivery options for PO Box addresses - Add messaging to delivery option titles ## Developer tools and resources <div class="resource-card-grid"> <div> <a class="resource-card" href="/docs/apps/build/cli-for-apps" data-theme-mode=""> <div class="resource-card__indicator-container"><img src="/assets/resource-cards/cli" data-alt-src="/assets/resource-cards/cli-dark" aria-hidden="true" class="resource-card__icon themed-image"></div> <h3 class="resource-card__title"> Shopify CLI </h3> <p class="resource-card__description">A command-line tool for building Shopify apps.</p> </a> </div></p> <p><div> <a class="resource-card" href="/docs/api/functions/reference/delivery-customization/graphql" data-theme-mode=""> <div class="resource-card__indicator-container"><img src="/assets/resource-cards/graphql" data-alt-src="/assets/resource-cards/graphql-dark" aria-hidden="true" class="resource-card__icon themed-image"></div> <h3 class="resource-card__title"> Delivery Customization API reference </h3> <p class="resource-card__description">Consult the GraphQL reference for the Delivery Customization API.</p> </a> </div> </div> ## Migrating from scripts to functions If you want to migrate an existing [shipping script](https://help.shopify.com/manual/checkout-settings/script-editor/shopify-scripts) to Shopify Functions, then you can use the following mappings: | Shopify Scripts method | Description | Shopify Functions object | Additional context | | ------------ | ----------- | -------------- | -------------- | | `change_name` | Changes the name of a delivery option | [RenameOperation](/docs/api/functions/reference/delivery-customization/graphql/common-objects/renameoperation) | | | `sort` | Sorts the delivery options based on some criteria, typically to place one delivery option at the top or bottom of a list | [MoveOperation](/docs/api/functions/reference/delivery-customization/graphql/common-objects/moveoperation) | Instead of sorting, you can move individual delivery methods. | | `delete_if` | Removes a delivery option from checkout | [HideOperation](/docs/api/functions/reference/delivery-customization/graphql/common-objects/hideoperation) | | ## Limitations and considerations - In the Delivery Customization API, the carrier name is automatically prepended to the shipping method title at checkout when using the [RenameOperation](/docs/api/functions/reference/delivery-customization/graphql/common-objects/renameoperation), and cannot be altered or omitted through the API. For example, if the carrier name is `UPS` and the method is `Standard`, you could change `UPS Standard` to `UPS Standard Shipping`, but you couldn't change `UPS Standard` to `Standard Shipping`. ## Next steps - Learn how to use Shopify Functions to [rename a delivery option](/docs/apps/build/checkout/delivery-shipping/delivery-options/build-function).