--- title: "Alma Flutter Drop-in" description: "Add Alma to your Drop-in integration." url: "https://docs.adyen.com/payment-methods/alma/flutter-drop-in" source_url: "https://docs.adyen.com/payment-methods/alma/flutter-drop-in.md" canonical: "https://docs.adyen.com/payment-methods/alma/flutter-drop-in" last_modified: "2026-05-23T12:56:20+02:00" language: "en" --- # Alma Flutter Drop-in Add Alma to your Drop-in integration. [View source](/payment-methods/alma/flutter-drop-in.md) You can add Alma to your existing integration. The following instructions show only what you must add to your integration specifically for Alma. If an instruction on this page corresponds with a step in the main integration guide, it includes a link to corresponding step of the main integration guide. The additions you must make depends on the [server-side flow](/online-payments/build-your-integration) that your integration uses: ## Sessions flow Drop-in ### Before-You-Begin ## Requirements | Requirement | Description | | | -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | - | | **Integration type** | Make sure that you have an existing Sessions flow [Flutter Drop-in integration](/online-payments/build-your-integration/advanced-flow?platform=Flutter\&integration=Drop-in). | | | **Checkout API** | Make sure that you use Checkout API v68 or later. | | | **Setup steps** | Before you begin, contact our [Support Team](https://ca-test.adyen.com/ca/ca/contactUs/support.shtml?form=other) to add Alma in your Customer Area. | | ### Add-Parameters-Sessions-Request ## Add additional parameters to your /sessions request When you [create a payment session](/online-payments/build-your-integration/sessions-flow?platform=Flutter\&integration=Drop-in#create-a-payment-session), add the following parameters: | Parameter | Required | Description | | ---------------------------------------------------------------------------------------------------------------- | -------- | ----------------------------------------------------------------- | | [telephoneNumber](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/sessions#request-telephoneNumber) | | The shopper's telephone number. | | [shopperEmail](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/sessions#request-shopperEmail) | | The shopper's email address. | | [billingAddress](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/sessions#request-billingAddress) | | The postal address of the shopper. | | [deliveryAddress](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/session#request-deliveryAddress) | | The postal address where the purchased goods should be delivered. | **Example /sessions request** ```bash curl https://checkout-test.adyen.com/v71/sessions \ -H 'x-API-key: ADYEN_API_KEY' \ -H 'Idempotency-Key: YOUR_IDEMPOTENCY_KEY' \ -H 'content-type: application/json' \ -X POST -d '{ "merchantAccount": "ADYEN_MERCHANT_ACCOUNT", "amount": { "value": 1000, "currency": "EUR" }, "returnUrl": "adyencheckout://your.package.name", "reference": "YOUR_PAYMENT_REFERENCE", "countryCode": "FR", "telephoneNumber": "85121212121", "shopperEmail": "s.hopper@gmail.com", "billingAddress": { "city": "Paris", "country": "FR", "houseNumberOrName": "123", "postalCode": "2000", "street": "Happy Street" }, "deliveryAddress": { "city": "Paris", "country": "FR", "houseNumberOrName": "123", "postalCode": "2000", "street": "Happy Street" } }' ``` ### Add-Configuration ## Add additional configuration for Alma You do not need to add any configuration parameters for Alma. ## Test and go live Check the status of Alma test payments in your [Customer Area](https://ca-test.adyen.com/) > **Transactions** > **Payments**. Before you can accept live Alma payments, you need to [submit a request for Alma](/payment-methods/add-payment-methods) in your [live Customer Area](https://ca-live.adyen.com/). ## Advanced flow Drop-in ### Before-You-Begin ## Requirements | Requirement | Description | | | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | - | | **Integration type** | Make sure that you have an existing Advanced flow [Flutter Drop-in integration](/online-payments/build-your-integration/advanced-flow?platform=Flutter\&integration=Drop-in). | | | **Action handling** | Make sure that your existing integration is set up to [handle the additional action](/online-payments/build-your-integration/advanced-flow/?platform=Flutter\&integration=Drop-in#handle-the-redirect). `action.type`: ****redirect****. | | | **Setup steps** | Before you begin, [add Alma in your Customer Area](/payment-methods/add-payment-methods). | | ### Add-Configuration ## Add additional configuration for Alma You do not need to add any configuration parameters for Alma. ### Add-Parameters-Payments-Request ## Add additional parameters to your /payments request When you [make a payment](/online-payments/build-your-integration/advanced-flow/?platform=Flutter\&integration=Drop-in#make-a-payment), add the following parameters to the [/payments](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments) request: | Parameter | Required | Description | | ----------------------------------------------------------------------------------------------------------------------------------- | -------- | ------------------------------------------------------------------------------------------------------------------------------------- | | [telephoneNumber](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/payments#request-telephoneNumber) | | The shopper's telephone number. | | [shopperEmail](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/payments#request-shopperEmail) | | The shopper's email address. | | [billingAddress](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/payments#request-billingAddress) | | The postal address of the shopper. | | [deliveryAddress](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/payments#request-deliveryAddress) | | The postal address where the purchased goods should be delivered. | | [additionalData.alma.installments\_count](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments#request-additionalData) | | Set to `3` or `4` to determine the number of installments the shopper will pay. Do not include if you want to let the shopper choose. | **Example payment request for Alma** ```bash curl https://checkout-test.adyen.com/v72/payments \ -H 'x-API-key: ADYEN_API_KEY' \ -H 'idempotency-key: YOUR_IDEMPOTENCY_KEY' \ -H 'content-type: application/json' \ -X POST -d '{ "amount":{ "currency":"EUR", "value":1000 }, "reference":"YOUR_ORDER_NUMBER", "returnUrl":"https://your-company.com/checkout?shopperOrder=12xy..", "merchantAccount":"ADYEN_MERCHANT_ACCOUNT", "countryCode": "FR", "shopperLocale": "en-US", "telephoneNumber": "85121212121", "shopperEmail": "s.hopper@gmail.com", "billingAddress": { "city": "Paris", "country": "FR", "houseNumberOrName": "123", "postalCode": "2000", "street": "Happy Street" }, "deliveryAddress": { "city": "Paris", "country": "FR", "houseNumberOrName": "123", "postalCode": "2000", "street": "Happy Street" }, "additionalData": { "alma.installments_count": 4 } }' ``` The response includes the `action.type`: redirect. **Example response with an additional action** ```json { "resultCode":"RedirectShopper", "action":{ "paymentMethodType":"alma", "method":"GET", "url":"https://checkoutshopper-test.adyen.com/checkoutshopper/checkoutPaymentRedirect?redirectData=...", "type":"redirect" } } ``` ## Test and go live Check the status of Alma test payments in your [Customer Area](https://ca-test.adyen.com/) > **Transactions** > **Payments**. Before you can accept live Alma payments, you need to [submit a request for Alma](/payment-methods/add-payment-methods) in your [live Customer Area](https://ca-live.adyen.com/).