> 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-the-verified-gift-card-as-a-reservation.md).

# Apply the verified gift card as a reservation

Applies the verified gift card as a reservation on the order. The submitted amount is capped by the following rules (in order):

1. Cannot exceed the card's available balance
2. Cannot exceed the remaining unpaid order total
3. Cannot exceed the remaining headroom under `GIFT_CARD_CONFIG.max_amount_per_order` after subtracting already-applied card amounts

After the reservation is created, the previously selected payment method is reset so the payment step is re-evaluated with the updated totals.

**Required Fields**:

* `amount`: Decimal amount to apply (must be greater than zero)

**Validation**:

* `amount` must be greater than zero
* If the final capped amount resolves to zero, a validation error is returned

**Backward Navigation**:

* Navigating backward clears the pending card from the session

**Next Pages**:

* `EmptyPage` — the gift card sub-flow is complete

```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=GiftCardApplyPage":{"post":{"tags":["Gift Cards, Gift Boxes & Loyalty"],"operationId":"submitGiftCardApplyPage","summary":"Apply the verified gift card as a reservation","description":"Applies the verified gift card as a reservation on the order.\nThe submitted amount is capped by the following rules (in order):\n\n1. Cannot exceed the card's available balance\n2. Cannot exceed the remaining unpaid order total\n3. Cannot exceed the remaining headroom under `GIFT_CARD_CONFIG.max_amount_per_order`\n   after subtracting already-applied card amounts\n\nAfter the reservation is created, the previously selected payment method\nis reset so the payment step is re-evaluated with the updated totals.\n\n**Required Fields**:\n- `amount`: Decimal amount to apply (must be greater than zero)\n\n**Validation**:\n- `amount` must be greater than zero\n- If the final capped amount resolves to zero, a validation error is returned\n\n**Backward Navigation**:\n- Navigating backward clears the pending card from the session\n\n**Next Pages**:\n- `EmptyPage` — the gift card sub-flow is complete","parameters":[{"$ref":"#/components/parameters/AjaxRequestHeader"},{"$ref":"#/components/parameters/SessionCookieHeader"}],"requestBody":{"required":true,"content":{"application/x-www-form-urlencoded":{"schema":{"$ref":"#/components/schemas/GiftCardApplyInput"}}}},"responses":{"200":{"description":"Gift card applied as reservation","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CheckoutResponse"}}}}}}}},"components":{"parameters":{"AjaxRequestHeader":{"name":"x-requested-with","in":"header","required":true,"description":"Required header for AJAX requests. 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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 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```


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