# Checkout

- [Checkout Flow](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-flow.md)
- [Checkout Overview](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview.md)
- [Basket change invalidation (critical constraint)](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/basket-change-invalidation-critical-constraint.md)
- [Multi-step completion in a single response](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/multi-step-completion-in-a-single-response.md)
- [Independent steps](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/independent-steps.md)
- [Authentication](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/authentication.md)
- [Request Format](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/request-format.md)
- [Purpose of the Process](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/purpose-of-the-process.md)
- [Page Flow Approach](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/page-flow-approach.md)
- [Data Consistency](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-overview/data-consistency.md)
- [Actions Performed on Checkout GET Requests](https://apidocs.akinon.com/commerce-openapis/checkout/actions-performed-on-checkout-get-requests.md)
- [Request Flow](https://apidocs.akinon.com/commerce-openapis/checkout/actions-performed-on-checkout-get-requests/request-flow.md)
- [Page Routing Logic](https://apidocs.akinon.com/commerce-openapis/checkout/actions-performed-on-checkout-get-requests/page-routing-logic.md)
- [Actions Performed on Checkout POST Requests](https://apidocs.akinon.com/commerce-openapis/checkout/actions-performed-on-checkout-post-requests.md)
- [Processing Flow](https://apidocs.akinon.com/commerce-openapis/checkout/actions-performed-on-checkout-post-requests/processing-flow.md)
- [Cascading Invalidation](https://apidocs.akinon.com/commerce-openapis/checkout/actions-performed-on-checkout-post-requests/cascading-invalidation.md)
- [Error Handling](https://apidocs.akinon.com/commerce-openapis/checkout/actions-performed-on-checkout-post-requests/error-handling.md)
- [Dynamic Settings](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings.md)
- [THREE\_D\_SECURE\_ENABLED](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/three_d_secure_enabled.md)
- [THREE\_D\_SECURE\_RULES](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/three_d_secure_rules.md)
- [INSTALLMENT\_FILTERS](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/installment_filters.md)
- [CAN\_GUEST\_PURCHASE](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/can_guest_purchase.md)
- [GIFT\_BOX\_CONFIGURATIONS](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/gift_box_configurations.md)
- [DEFAULT\_COUNTRY\_CODE](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/default_country_code.md)
- [REMOTE\_PRICE\_ATTRIBUTE\_KEY](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/remote_price_attribute_key.md)
- [CHECKOUT\_LIST\_RETAIL\_STORES](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/checkout_list_retail_stores.md)
- [CHECKOUT\_RETAIL\_STORE\_FILTERS](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/checkout_retail_store_filters.md)
- [IDENTITY\_NUMBER\_REQUIRED\_AMOUNT](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/identity_number_required_amount.md)
- [USER\_PHONE\_FORMAT](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/user_phone_format.md)
- [REMOTE\_DELIVERY\_OPTION\_PROVIDER](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/remote_delivery_option_provider.md)
- [CHECKOUT\_SHIPPING\_OPTION\_SELECTION\_PAGE](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/checkout_shipping_option_selection_page.md)
- [AUTOSELECT\_SHIPPING](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/autoselect_shipping.md)
- [ATTRIBUTE\_KEYS\_FOR\_ATTRIBUTE\_BASED\_SHIPPING\_OPTION](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/attribute_keys_for_attribute_based_shipping_option.md)
- [REMOTE\_SHIPPING\_OPTION\_PROVIDER](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/remote_shipping_option_provider.md)
- [CHECKOUT\_WITH\_TOKEN\_ALLOW\_ANONYMOUS](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/checkout_with_token_allow_anonymous.md)
- [DEFAULT\_CARD\_SLUG](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/default_card_slug.md)
- [LOYALTY\_MONEY\_ENABLED](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/loyalty_money_enabled.md)
- [MINIMUM\_ORDER\_AMOUNT](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/minimum_order_amount.md)
- [CUSTOMER\_LOYALTY\_CARD\_SERVICE](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/customer_loyalty_card_service.md)
- [CASH\_REGISTER\_AUTH\_CONF](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/cash_register_auth_conf.md)
- [GIFT\_CARD\_CONFIG](https://apidocs.akinon.com/commerce-openapis/checkout/dynamic-settings/gift_card_config.md)
- [Env Settings](https://apidocs.akinon.com/commerce-openapis/checkout/env-settings.md)
- [CASH\_REGISTER\_DEFAULTS](https://apidocs.akinon.com/commerce-openapis/checkout/env-settings/cash_register_defaults.md)
- [ORDER\_BARCODE\_SENT\_SMS\_EXPIRATION\_IN\_SECONDS](https://apidocs.akinon.com/commerce-openapis/checkout/env-settings/order_barcode_sent_sms_expiration_in_seconds.md)
- [DELIVERY\_BAGS\_CONF](https://apidocs.akinon.com/commerce-openapis/checkout/env-settings/delivery_bags_conf.md)
- [USE\_ONE\_TIME\_TOKEN](https://apidocs.akinon.com/commerce-openapis/checkout/env-settings/use_one_time_token.md)
- [ORDERS\_USE\_ISOLATED\_PRE\_ORDER\_ON\_RETURN](https://apidocs.akinon.com/commerce-openapis/checkout/env-settings/orders_use_isolated_pre_order_on_return.md)
- [Static Settings](https://apidocs.akinon.com/commerce-openapis/checkout/static-settings.md)
- [GPAY\_BIN\_NUMBER](https://apidocs.akinon.com/commerce-openapis/checkout/static-settings/gpay_bin_number.md)
- [Checkout Pages](https://apidocs.akinon.com/commerce-openapis/checkout/checkout-pages.md)
- [Models](https://apidocs.akinon.com/commerce-openapis/checkout/models.md)


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