# InLine - [InLine Checkout Guide](https://docs.2checkout.com/shopping-carts/inline/inline-checkout-guide.md) - [InLine Checkout ordering engine](https://docs.2checkout.com/shopping-carts/inline/inline-checkout-ordering-engine.md) - [InLine Checkout methods and parameters](https://docs.2checkout.com/shopping-carts/inline/inline-checkout-methods-and-parameters.md) - [Inline trials flow](https://docs.2checkout.com/shopping-carts/inline/inline-trials-flow.md) - [InLine Checkout with signature generation](https://docs.2checkout.com/shopping-carts/inline/inline-checkout-with-signature-generation.md) - [Signature validation for return URL via InLine checkout](https://docs.2checkout.com/shopping-carts/inline/signature-validation-for-return-url-via-inline-checkout.md) - [Use cases](https://docs.2checkout.com/shopping-carts/inline/use-cases.md) - [Set cart lock in the InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-cart-lock-in-the-inline-cart.md) - [Set the order external reference in the InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-order-external-reference-in-the-inline-cart.md) - [Set sale source in the InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-sale-source-in-the-inline-cart.md) - [Preload InLine Cart to increase loading speed](https://docs.2checkout.com/shopping-carts/inline/use-cases/preload-inline-cart-to-increase-loading-speed.md) - [Set billing details for the InLine Checkout](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-billing-details-for-the-inline-checkout.md) - [Turn on auto-advance feature](https://docs.2checkout.com/shopping-carts/inline/use-cases/turn-on-auto-advance-feature.md) - [Assign values for the additional order fields](https://docs.2checkout.com/shopping-carts/inline/use-cases/assign-values-for-the-additional-order-fields.md) - [Subscribe / unsubscribe to shopping cart events for InLine Checkout](https://docs.2checkout.com/shopping-carts/inline/use-cases/subscribe-unsubscribe-to-shopping-cart-events-for-inline-checkout.md) - [Test adding product coupons to the InLine Checkout](https://docs.2checkout.com/shopping-carts/inline/use-cases/test-adding-product-coupons-to-the-inline-checkout.md) - [Test adding a product coupon to the InLine Checkout](https://docs.2checkout.com/shopping-carts/inline/use-cases/test-adding-a-product-coupon-to-the-inline-checkout.md) - [Set the cart currency for InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-cart-currency-for-inline-cart.md) - [Set the shipping details in the InLine Checkout](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-shipping-details-in-the-inline-checkout.md) - [Add a digital catalog product with auto-applied order promotion](https://docs.2checkout.com/shopping-carts/inline/use-cases/add-a-digital-catalog-product-with-auto-applied-order-promotion.md) - [Set the item external reference in the InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-item-external-reference-in-the-inline-cart.md) - [Place manual renewal order in InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/place-manual-renewal-order-in-inline-cart.md) - [Place upgrade orders with InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/place-upgrade-orders-with-inline-cart.md) - [Add a catalog product to InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/add-a-catalog-product-to-inline-cart.md) - [Assign values for the product additional custom fields](https://docs.2checkout.com/shopping-carts/inline/use-cases/assign-values-for-the-product-additional-custom-fields.md) - [Add a digital catalog product with regular auto-applied promotion and manually applied order promo](https://docs.2checkout.com/shopping-carts/inline/use-cases/add-a-digital-catalog-product-with-regular-auto-applied-promotion-and-manually-applied-order-promo.md) - [Set the pricing option for catalog products](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-pricing-option-for-catalog-products.md) - [Add a physical dynamic product with dynamic shipping, dynamic taxes, and dynamic coupon](https://docs.2checkout.com/shopping-carts/inline/use-cases/add-a-physical-dynamic-product-with-dynamic-shipping-dynamic-taxes-and-dynamic-coupon.md) - [Set pricing option for dynamic products](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-pricing-option-for-dynamic-products.md) - [Set test orders in InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-test-orders-in-inline-cart.md) - [Set return method in InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-return-method-in-inline-cart.md) - [Add a dynamic product to the InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/add-a-dynamic-product-to-the-inline-cart.md) - [Checkout catalog products with custom prices using the signature in InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/checkout-catalog-products-with-custom-prices-using-the-signature-in-inline-cart.md) - [Checkout with expiration using the signature in InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/checkout-with-expiration-using-the-signature-in-inline-cart.md) - [How to use the signature with the Inline Checkout](https://docs.2checkout.com/shopping-carts/inline/use-cases/how-to-use-the-signature-with-the-inline-checkout.md) - [Set the cart language for InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-cart-language-for-inline-cart.md) - [Add a digital dynamic product with a dynamic coupon](https://docs.2checkout.com/shopping-carts/inline/use-cases/add-a-digital-dynamic-product-with-a-dynamic-coupon.md) - [Set the customer reference in the InLine Cart](https://docs.2checkout.com/shopping-carts/inline/use-cases/set-the-customer-reference-in-the-inline-cart.md) --- # 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.2checkout.com/shopping-carts/inline.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.