# Shipping glossary **Shipping app** A configured application that adds a new shipping method to the store and provides online shipping rates to customers at the checkout. **Shipping request** POST request sent from Ecwid API to the shipping app with non-encrypted order data in a JSON body. The shipping app must process the request and respond with shipping rates. **Shipping rate** Additional cost applied to the order for its delivery to the customer. The cost is added to the order total before customers proceeds to the payment. **Shipping option** Shipping rates returned by the app and displayed to customers at the checkout. One app can return multiple shipping options with different rates to one shipping request. For example, offering premium delivery or several pickup locations. **Shipping method** A combined view of the shipping options added by the app in Ecwid admin. Provides additional settings to the store owner: "enabled" toggle, shipping zones, handling fees, etc. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.ecwid.com/guides/shipping-methods/shipping-glossary.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.