> 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/mobil-express-payment/attempt-mobilexpress-payment.md).

# Attempt MobilExpress payment

Submits the payment attempt to the MobilExpress gateway (`process_payment`). Depending on the gateway's `ResultCode`, the flow routes to different completion pages.

**Required Fields**:

* `agreement`: User must accept the terms and conditions. Must be `true`.

**Payment Flow**:

* The gateway is called with the stored card token, order number, installment count, and total amount. 3D Secure may be requested automatically based on system rules.
* If `ResultCode` is `Success` and no further action is needed, the order is created and the user is routed to `ThankYouPage`.
* If `ResultCode` is `ThreeDSecureURLCreated`, a 3D redirect URL is stored and the user is routed to `MobilExpressPaymentThreeDPage`.
* Other result codes route to the appropriate completion page.

**State Changes** (on non-success outcome):

* `pre_order.data['me_payment_tried']` is set to `true`
* `pre_order.data['me_payment_succeeded']` is set based on the result
* `pre_order.data['me_further_action']` is set to the `ResultCode`
* `pre_order.data['me_transaction_id']` is set to the MobilExpress transaction ID
* `pre_order.data['me_three_d_redirect_url']` is set if 3D redirect is needed

**Next Page**:

* `ThankYouPage` — payment succeeded
* `MobilExpressPaymentThreeDPage` — 3D Secure redirect required
* `MobilExpressPaymentCompleteOtpPage` — `ResultCode` is `OTPRequired`
* `MobilExpressPaymentCompleteCvvPage` — `ResultCode` is `CVVRequired`
* `MobilExpressPaymentCompleteCvvAndOtpPage` — `ResultCode` is `CVVAndOTPRequired`

```json
{"openapi":"3.1.0","info":{"title":"Overview","version":"1.0.0"},"tags":[{"name":"MobilExpress Payment","description":"# Checkout MobilExpress Payment\n\nIntegrate MobilExpress mobile payment into your checkout. The flow covers payment method selection, saved card listing, installment selection, payment initiation, 3D Secure redirection, OTP verification, and payment completion. Completion variants are available for CVV-only, OTP-only, and combined CVV+OTP scenarios.\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### INSTALLMENT_FILTERS\nFilters that restrict which installment options are shown during MobilExpress installment selection."}],"servers":[{"description":"Akinon Checkout API","url":"https://{commerce_url}","variables":{"commerce_url":{"default":"sandbox.akinon.com"}}}],"paths":{"/orders/checkout/?page=MobilExpressTryPaymentPage":{"post":{"tags":["MobilExpress Payment"],"operationId":"submitMobilExpressTryPayment","summary":"Attempt MobilExpress payment","description":"Submits the payment attempt to the MobilExpress gateway (`process_payment`).\nDepending on the gateway's `ResultCode`, the flow routes to different completion pages.\n\n**Required Fields**:\n- `agreement`: User must accept the terms and conditions. Must be `true`.\n\n**Payment Flow**:\n- The gateway is called with the stored card token, order number, installment count,\n  and total amount. 3D Secure may be requested automatically based on system rules.\n- If `ResultCode` is `Success` and no further action is needed, the order is created\n  and the user is routed to `ThankYouPage`.\n- If `ResultCode` is `ThreeDSecureURLCreated`, a 3D redirect URL is stored and the\n  user is routed to `MobilExpressPaymentThreeDPage`.\n- Other result codes route to the appropriate completion page.\n\n**State Changes** (on non-success outcome):\n- `pre_order.data['me_payment_tried']` is set to `true`\n- `pre_order.data['me_payment_succeeded']` is set based on the result\n- `pre_order.data['me_further_action']` is set to the `ResultCode`\n- `pre_order.data['me_transaction_id']` is set to the MobilExpress transaction ID\n- `pre_order.data['me_three_d_redirect_url']` is set if 3D redirect is needed\n\n**Next Page**:\n- `ThankYouPage` — payment succeeded\n- `MobilExpressPaymentThreeDPage` — 3D Secure redirect required\n- `MobilExpressPaymentCompleteOtpPage` — `ResultCode` is `OTPRequired`\n- `MobilExpressPaymentCompleteCvvPage` — `ResultCode` is `CVVRequired`\n- `MobilExpressPaymentCompleteCvvAndOtpPage` — `ResultCode` is `CVVAndOTPRequired`","parameters":[{"$ref":"#/components/parameters/AjaxRequestHeader"},{"$ref":"#/components/parameters/SessionCookieHeader"}],"requestBody":{"required":true,"content":{"application/x-www-form-urlencoded":{"schema":{"$ref":"#/components/schemas/MobilExpressTryPaymentInput"}}}},"responses":{"200":{"description":"Payment attempt result","content":{"application/json":{"schema":{"$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 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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