> For the complete documentation index, see [llms.txt](https://apidocs.akinon.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://apidocs.akinon.com/commerce-openapis/checkout/gift-cards-gift-boxes-and-loyalty/apply-selected-reward-amounts-to-the-order.md).

# Apply selected reward amounts to the order

Accepts the user's reward amount selections and stores them in `pre_order.selected_rewards`. The request body is dynamic: each field name corresponds to a `RewardType` enum value present in the `rewards` list returned by `RewardListPage`. Each value is a decimal amount the user chooses to apply, between `0` and the maximum available for that type. This is an **independent** page — submitting it does not advance the checkout flow.

**Dynamic Fields**:

* One field per reward type (e.g., `general`, `special`).
* Field type: decimal with up to 12 digits and 2 decimal places.
* Minimum value: `0`
* Maximum value: the `amount` value for that reward type from the pre-order state.

**Validation**:

* The sum of all selected reward amounts must not exceed the order total (`pre_order.get_total_amount_with_interest()`). If it does, a validation error is returned.

**State Update**:

* On success, `selected_rewards` is populated with the chosen amounts keyed by `RewardType` enum values.

**Backward Navigation**:

* When navigating backward, `selected_rewards` is reset to `null`.

**Next Pages**:

* No further checkout page (`EmptyPage`)

```json
{"openapi":"3.1.0","info":{"title":"Overview","version":"1.0.0"},"tags":[{"name":"Gift Cards, Gift Boxes & Loyalty","description":"# Checkout Gift Cards, Gift Boxes & Loyalty\n\nApply supplementary payment methods and gifting options that adjust the order total or add items to the order.\n\n**Gift Cards** let customers apply a pre-loaded card balance to their order. The flow supports OTP verification, multi-card application (when configured), amount adjustment, and removal.\n\n**Gift Boxes** let customers add gift packaging to their order.\n\n**Loyalty Points** let customers redeem accumulated points as a payment contribution.\n\n**Rewards** present available reward options that the customer can apply to the order.\n\n## Authentication\n\nThese endpoints support both authenticated and anonymous sessions.\n\n- **Authenticated users**: Session cookie (`sessionid`) tracks checkout progress.\n- **Anonymous users**: Guest checkout is available when the `CAN_GUEST_PURCHASE` setting is enabled.\n## Request Format\n\nInclude the following header in all checkout requests:\n\n- **x-requested-with**: `XMLHttpRequest`\n\n## Dynamic Settings\n\n### GIFT_CARD_CONFIG\nConfiguration for the gift card feature:\n- `multi_card_enabled` — allows more than one gift card per order when enabled.\n- `max_amount_per_order` — maximum cumulative gift card amount per order (zero means no cap).\n- `balance_cache_ttl` — duration in seconds that a fetched card balance is cached.\n- `otp_resend_cooldown` — minimum interval in seconds between OTP resend requests.\n- `void_task_countdown` — delay in seconds before unused reservations are voided.\n\n### LOYALTY_MONEY_ENABLED\nMaster switch for the loyalty money payment feature. When disabled, the loyalty money step is not shown.\n\n### MINIMUM_ORDER_AMOUNT\nMinimum order total required after loyalty points are applied. Redemption is capped so the remaining amount does not fall below this threshold.\n\n### CUSTOMER_LOYALTY_CARD_SERVICE\nConfigures the service used to retrieve loyalty point balances and the optional minimum basket amount required before redemption is available."}],"servers":[{"description":"Akinon Checkout API","url":"https://{commerce_url}","variables":{"commerce_url":{"default":"sandbox.akinon.com"}}}],"paths":{"/orders/checkout/?page=RewardSelectionPage":{"post":{"tags":["Gift Cards, Gift Boxes & Loyalty"],"operationId":"submitRewardSelectionPage","summary":"Apply selected reward amounts to the order","description":"Accepts the user's reward amount selections and stores them in `pre_order.selected_rewards`.\nThe request body is dynamic: each field name corresponds to a `RewardType` enum value\npresent in the `rewards` list returned by `RewardListPage`. Each value is a decimal\namount the user chooses to apply, between `0` and the maximum available for that type.\nThis is an **independent** page — submitting it does not advance the checkout flow.\n\n**Dynamic Fields**:\n- One field per reward type (e.g., `general`, `special`).\n- Field type: decimal with up to 12 digits and 2 decimal places.\n- Minimum value: `0`\n- Maximum value: the `amount` value for that reward type from the pre-order state.\n\n**Validation**:\n- The sum of all selected reward amounts must not exceed the order total\n  (`pre_order.get_total_amount_with_interest()`). If it does, a validation error\n  is returned.\n\n**State Update**:\n- On success, `selected_rewards` is populated with the chosen amounts keyed\n  by `RewardType` enum values.\n\n**Backward Navigation**:\n- When navigating backward, `selected_rewards` is reset to `null`.\n\n**Next Pages**:\n- No further checkout page (`EmptyPage`)","parameters":[{"$ref":"#/components/parameters/AjaxRequestHeader"},{"$ref":"#/components/parameters/SessionCookieHeader"}],"requestBody":{"required":true,"content":{"application/x-www-form-urlencoded":{"schema":{"$ref":"#/components/schemas/RewardSelectionPageInput"}}}},"responses":{"200":{"description":"Rewards applied or validation error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CheckoutResponse"}}}}}}}},"components":{"parameters":{"AjaxRequestHeader":{"name":"x-requested-with","in":"header","required":true,"description":"Required header for AJAX requests. Must be set to `XMLHttpRequest` for all checkout requests.","schema":{"type":"string","enum":["XMLHttpRequest"],"default":"XMLHttpRequest"}},"SessionCookieHeader":{"name":"Cookie","in":"header","required":false,"description":"Session cookie header (e.g. `sessionid=abc123` or `osessionid=<session_id>`)","schema":{"type":"string"}}},"schemas":{"RewardSelectionPageInput":{"type":"object","description":"Dynamic input schema — the fields are determined at runtime based on the reward\ntypes returned by the payment gateway in the preceding `RewardListPage` step.\nEach field name is a `RewardType` enum value (`general` or `special`) and\neach value is a decimal amount between `0` and the maximum available for that type.\nThe sum of all submitted amounts must not exceed the order total.","additionalProperties":{"type":"string","format":"decimal","description":"Amount of this reward type to apply. Between 0 and the maximum available\nfor this type (12 digits, 2 decimal places)."}},"CheckoutResponse":{"type":"object","properties":{"context_list":{"type":"array","items":{"$ref":"#/components/schemas/PageContext"}},"pre_order":{"$ref":"#/components/schemas/PreOrder"},"errors":{"oneOf":[{"type":"object","additionalProperties":{"type":"array","items":{"type":"string"}}},{"type":"null"},{"type":"array","items":{"type":"string"}}]},"template_name":{"type":"string"}}},"PageContext":{"type":"object","properties":{"page_name":{"type":"string","description":"Class name of the page (e.g., \"IndexPage\", \"AddressSelectionPage\")"},"page_slug":{"type":"string","description":"URL-friendly slug for the page"},"page_context":{"type":"object","description":"Page-specific context data","additionalProperties":true}}},"PreOrder":{"type":"object","description":"Pre-order state containing basket, addresses, shipping, payment information","properties":{"basket":{"$ref":"#/components/schemas/Basket"},"shipping_address":{"oneOf":[{"$ref":"#/components/schemas/Address"},{"type":"null"}]},"billing_address":{"oneOf":[{"$ref":"#/components/schemas/Address"},{"type":"null"}]},"shipping_option":{"oneOf":[{"$ref":"#/components/schemas/ShippingOptionDetail"},{"type":"null"}]},"billing_and_shipping_same":{"oneOf":[{"type":"boolean"},{"type":"null"}]},"payment_option":{"oneOf":[{"$ref":"#/components/schemas/PaymentOptionDetail"},{"type":"null"}]},"notifications":{"type":"array","items":{"type":"object"}},"shipping_amount":{"oneOf":[{"type":"string","pattern":"^\\d+\\.\\d{2}$"},{"type":"null"}]},"total_amount":{"oneOf":[{"type":"string","pattern":"^\\d+\\.\\d{2}$"},{"type":"null"}]},"unpaid_amount":{"oneOf":[{"type":"string","pattern":"^\\d+\\.\\d{2}$"},{"type":"null"}]},"loyalty_money":{"oneOf":[{"type":"string","pattern":"^\\d+\\.\\d{2}$"},{"type":"null"}]},"currency_type_label":{"type":"string"},"installment":{"oneOf":[{"$ref":"#/components/schemas/Installment"},{"type":"null"}]},"card_info":{"oneOf":[{"type":"object","description":"Card information from BIN lookup","properties":{"bin_number":{"type":"string","description":"Card BIN (first 6-8 digits)"},"card":{"type":"object","description":"Card details from BIN database","properties":{"pk":{"type":"integer"},"name":{"type":"string","description":"Card type name (e.g., \"Visa\", \"Mastercard\")"}}}}},{"type":"null"}]},"redirect_to_three_d":{"oneOf":[{"type":"boolean"},{"type":"null"}]},"delivery_option":{"oneOf":[{"$ref":"#/components/schemas/DeliveryOption"},{"type":"null"}]},"retail_store":{"oneOf":[{"$ref":"#/components/schemas/RetailStore"},{"type":"null"}]},"funds_transfer_bank":{"oneOf":[{"$ref":"#/components/schemas/BankAccount"},{"type":"null"}]},"number":{"oneOf":[{"type":"string","description":"Pre-order/order number"},{"type":"null"}]},"order":{"oneOf":[{"type":"object","description":"Created order (after checkout completion)","properties":{"pk":{"type":"integer"},"number":{"type":"string"},"status":{"type":"string"}}},{"type":"null"}]},"payment_choice":{"oneOf":[{"$ref":"#/components/schemas/PaymentChoice"},{"type":"null"}]},"user_email":{"oneOf":[{"type":"string"},{"type":"null"}]},"phone_number":{"oneOf":[{"type":"string"},{"type":"null"}]},"user_phone_number":{"oneOf":[{"type":"string"},{"type":"null"}]},"gift_box":{"oneOf":[{"type":"object","properties":{"note":{"type":"string"},"gift_video":{"type":"boolean"},"gift_video_notification_sent":{"type":"boolean"},"price":{"type":"string"}}},{"type":"null"}]},"delivery_range":{"oneOf":[{"type":"object","properties":{"lower":{"type":"string","format":"date-time"},"upper":{"type":"string","format":"date-time"}}},{"type":"null"}]},"total_amount_with_interest":{"oneOf":[{"type":"string","pattern":"^\\d+\\.\\d{2}$"},{"type":"null"}]},"is_guest":{"type":"boolean"},"is_post_order":{"type":"boolean"},"data_source_shipping_options":{"oneOf":[{"type":"array","items":{"$ref":"#/components/schemas/DataSourceShippingOptionDetail"}},{"type":"null"}]},"attribute_based_shipping_options":{"oneOf":[{"type":"array","items":{"$ref":"#/components/schemas/PreOrderAttributeBasedShippingOption"}},{"type":"null"}]}}},"Basket":{"type":"object","properties":{"pk":{"type":"integer"},"total_amount":{"type":"string","pattern":"^\\d+\\.\\d{2}$"}}},"Address":{"type":"object","properties":{"pk":{"type":"integer"},"email":{"type":"string"},"phone_number":{"type":"string"},"first_name":{"type":"string"},"last_name":{"type":"string"},"country":{"$ref":"#/components/schemas/Country"},"city":{"$ref":"#/components/schemas/City"},"line":{"type":"string"},"title":{"type":"string"},"township":{"$ref":"#/components/schemas/Township"},"district":{"oneOf":[{"$ref":"#/components/schemas/District"},{"type":"null"}]},"postcode":{"type":"string"},"notes":{"type":"string"},"company_name":{"type":"string"},"tax_office":{"type":"string"},"tax_no":{"type":"string"},"e_bill_taxpayer":{"type":"boolean"},"is_corporate":{"type":"boolean"},"primary":{"type":"boolean"},"identity_number":{"type":"string"}}},"Country":{"type":"object","properties":{"pk":{"type":"integer"},"code":{"type":"string"},"name":{"type":"string"}}},"City":{"type":"object","properties":{"pk":{"type":"integer"},"name":{"type":"string"}}},"Township":{"type":"object","properties":{"pk":{"type":"integer"},"name":{"type":"string"}}},"District":{"type":"object","properties":{"pk":{"type":"integer"},"name":{"type":"string"}}},"ShippingOptionDetail":{"type":"object","description":"Detailed shipping option with calculated amount","properties":{"pk":{"type":"integer"},"name":{"type":"string"},"slug":{"type":"string"},"logo":{"oneOf":[{"type":"string","format":"uri"},{"type":"null"}]},"shipping_amount":{"type":"string","pattern":"^\\d+\\.\\d{2}$"},"description":{"oneOf":[{"type":"string"},{"type":"null"}]},"kwargs":{"type":"object","additionalProperties":true}}},"PaymentOptionDetail":{"type":"object","description":"Detailed payment option with type information","properties":{"pk":{"type":"integer"},"name":{"type":"string"},"slug":{"type":"string"},"payment_type":{"type":"string","enum":["credit_card","funds_transfer","bkm_express","loyalty_money","cash_register","gpay","redirection","stored_card","masterpass","masterpass_rest","credit_payment","pay_later","saved_card","confirmation","b2b","wallet","pay_on_delivery"]},"payment_type_label":{"type":"string"}}},"Installment":{"type":"object","properties":{"pk":{"type":"integer"},"installment_count":{"type":"integer"},"label":{"type":"string"},"price_with_accrued_interest":{"type":"string","pattern":"^\\d+\\.\\d{2}$"},"monthly_price_with_accrued_interest":{"type":"string","pattern":"^\\d+\\.\\d{2}$"}}},"DeliveryOption":{"type":"object","properties":{"pk":{"type":"integer"},"name":{"type":"string"},"delivery_option_type":{"type":"string","enum":["customer","retail_store","pickup_location"]},"is_active":{"type":"boolean"}}},"RetailStore":{"type":"object","properties":{"pk":{"type":"integer"},"name":{"type":"string"},"erp_code":{"type":"string"},"township":{"$ref":"#/components/schemas/Township"},"click_and_collect":{"type":"boolean"},"is_active":{"type":"boolean"}}},"BankAccount":{"type":"object","description":"Bank account for funds transfer payments","properties":{"pk":{"type":"integer"},"bank_name":{"type":"string","description":"Name of the bank"},"account_holder":{"type":"string","description":"Account holder name"},"iban":{"type":"string","description":"International Bank Account Number"},"currency":{"type":"string","description":"Currency code (e.g., \"USD\", \"EUR\", \"TRY\")"},"is_active":{"type":"boolean"}}},"PaymentChoice":{"type":"object","properties":{"value":{"type":"string"},"label":{"type":"string"},"price":{"type":"string","pattern":"^\\d+\\.\\d{2}$"}}},"DataSourceShippingOptionDetail":{"type":"object","description":"Data source shipping option for multi-vendor shipping","properties":{"pk":{"type":"integer"},"shipping_amount":{"type":"string","pattern":"^\\d+\\.\\d{2}$"},"shipping_option_name":{"type":"string"},"shipping_option_logo":{"oneOf":[{"type":"string","format":"uri"},{"type":"null"}]},"data_source":{"type":"object","properties":{"pk":{"type":"integer"},"title":{"type":"string"}}},"description":{"oneOf":[{"type":"string"},{"type":"null"}]}}},"PreOrderAttributeBasedShippingOption":{"type":"object","description":"Attribute-based shipping option selected for a product group","properties":{"pk":{"type":"integer"},"shipping_option_name":{"type":"string"},"shipping_option_logo":{"oneOf":[{"type":"string","format":"uri"},{"type":"null"}]},"shipping_amount":{"type":"string","pattern":"^\\d+\\.\\d{2}$"},"product_ids":{"type":"array","items":{"type":"integer"}},"attribute_value":{"type":"string"},"attribute_key":{"oneOf":[{"type":"array","items":{"type":"string"}},{"type":"null"}]}}}}}}
```


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