---
title: "Walley Android Drop-in integration"
description: "Add Walley to an existing Drop-in integration."
url: "https://docs.adyen.com/payment-methods/walley/android-drop-in"
source_url: "https://docs.adyen.com/payment-methods/walley/android-drop-in.md"
canonical: "https://docs.adyen.com/payment-methods/walley/android-drop-in"
last_modified: "2026-06-01T15:33:15+02:00"
language: "en"
---

# Walley Android Drop-in integration

Add Walley to an existing Drop-in integration.

[View source](/payment-methods/walley/android-drop-in.md)

**If you are using Android Drop-in v5.0.0 or later:**

This payment method requires no additional configuration.

Follow the [Drop-in integration guide](/online-payments/build-your-integration/sessions-flow?platform=Android\&integration=Drop-in).

Adyen's [Android Drop-in](/online-payments/build-your-integration/sessions-flow?platform=Android\&integration=Drop-in) renders Walley in your payment form, and redirects the shopper to complete the payment.

## Requirements

The Android Drop-in integration works the same way for all payment methods. If you haven't done this integration yet, refer to our [Drop-in integration guide](/online-payments/build-your-integration/sessions-flow?platform=Android\&integration=Drop-in).

| Requirement          | Description                                                                                                                                                                                                                        |
| -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Integration type** | Make sure that you have built your [Drop-in integration](/online-payments/build-your-integration/sessions-flow?platform=Android\&integration=Drop-in%2F%3Ftarget%3D_blank). Walley for Android works with all versions of Drop-in. |
| **Setup steps**      | Before you begin, contact our [Support Team](https://ca-test.adyen.com/ca/ca/contactUs/support.shtml?form=other) to add Walley in your test Customer Area.                                                                         |

## Show Walley in your payment form

Drop-in uses the `countryCode` and the `amount.currency` from your [/paymentMethods](https://docs.adyen.com/api-explorer/Checkout/latest/post/paymentMethods) request to show the available payment methods to your shopper. To show **walley** for business-to-consumer and **walley\_b2b** for business-to-business in the list of available payment methods:

1. Use the following table to specify parameters in a [/paymentMethods](https://docs.adyen.com/api-explorer/Checkout/latest/post/paymentMethods) request:

   | Country/region | `countryCode` | `amount.currency` |
   | -------------- | ------------- | ----------------- |
   | Denmark        | **DK**        | **DKK**           |
   | Finland        | **FI**        | **EUR**           |
   | Norway         | **NO**        | **NOK**           |
   | Sweden         | **SE**        | **SEK**           |

Payments in Denmark (**DK**) or with the **DKK** currency are available only for *B2C* payments.

### API response

After the shopper enters their payment details, Drop-in returns `paymentComponentData.paymentMethod`. Pass this to your server and make a payment request.

## Make a payment

When the shopper proceeds to pay, Drop-in returns the `paymentComponentData.paymentMethod`.

1. Pass the `paymentComponentData.paymentMethod` value to your server.

2. From your server, make a [/payments](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments) request, specifying:

   * `paymentMethod`: The `paymentComponentData.paymentMethod` from your client app. The API response contains **paymentMethod.type: walley** for business-to-consumer, and **paymentMethod.type: walley\_b2b** for business-to-business.
   * `returnURL`: The URL the shopper is redirected to after they complete the payment. This URL can have a maximum of 1024 characters. Get this URL from the Component in the `RedirectComponent.getReturnUrl(context)`.

#### curl

```bash
curl https://checkout-test.adyen.com/v72/payments \
-H 'x-api-key: ADYEN_API_KEY' \
-H 'content-type: application/json' \
-d '{
  "merchantAccount":"ADYEN_MERCHANT_ACCOUNT",
  "reference":"YOUR_ORDER_NUMBER",
  "amount":{
    "currency":"EUR",
    "value":1000
  },
  "paymentMethod":{
    "type":"walley"
  },
  "countryCode": "NO",
  "shopperLocale": "no_NO",
  "telephoneNumber": "+46 840 839 298",
  "shopperEmail":"youremail@email.com",
  "returnUrl":"https://your-company.example.com/checkout?shopperOrder=12xy..",
  "lineItems":[
      {
         "quantity":"1",
         "amountExcludingTax":"331",
         "taxPercentage":"2100",
         "description":"Shoes",
         "id":"Item #1",
         "taxAmount":"69"
      },
      {
         "quantity":"1",
         "amountExcludingTax":"400",
         "taxPercentage":"2100",
         "description":"Shirt",
         "id":"Item #2",
         "taxAmount":"72"
      }
  ]
}'
```

#### Java

```java
// Set YOUR_X-API-KEY with the API key from the Customer Area.
// Change to Environment.LIVE and add the Live URL prefix when you are ready to accept live payments.
    Client client = new Client("ADYEN_API_KEY", Environment.TEST);
    Checkout checkout = new Checkout(client);

    PaymentsRequest paymentsRequest = new PaymentsRequest();

    String merchantAccount = "ADYEN_MERCHANT_ACCOUNT";
    paymentsRequest.setMerchantAccount(merchantAccount);

    Amount amount = new Amount();
    amount.setCurrency("EUR");
    amount.setValue(1000L);
    paymentsRequest.setAmount(amount);

    DefaultPaymentMethodDetails paymentMethodDetails = new DefaultPaymentMethodDetails();
    paymentMethodDetails.setType("walley");
    paymentsRequest.setPaymentMethod(paymentMethodDetails);

    paymentsRequest.setReference("YOUR_ORDER_NUMBER");
    paymentsRequest.setReturnUrl("https://your-company.example.com/checkout?shopperOrder=12xy..");
    paymentsRequest.setCountryCode("NO");
    paymentsRequest.setShopperLocale("no_NO");
    paymentsRequest.setTelephoneNumber("+46 840 839 298");
    paymentsRequest.setShopperEmail("youremail@email.com");

    List<LineItem> lineItems = new ArrayList<>();
    lineItems.add(
        new LineItem()
        .quantity(1L)
        .taxPercentage(2100L)
        .description("Shoes")
        .id("Item #1")
        .amountExcludingTax(331L)
        .taxAmount(69L)
    );

    paymentsRequest.setLineItems(lineItems);

    PaymentsResponse paymentsResponse = checkout.payments(paymentsRequest);
```

#### PHP

```php
// SET YOUR ADYEN_API_KEY with the API key from the Customer Area.
$client = new \Adyen\Client();
$client->setXApiKey("ADYEN_API_KEY");
$service = new \Adyen\Service\Checkout($client);

$params = array(
  "amount" => array(
    "currency" => "EUR",
    "value" => 1000
  ),
  "reference" => "YOUR_ORDER_NUMBER",
  "paymentMethod" => array(
    "type" => "walley"
  ),
  "countryCode" => "NO",
  "shopperLocale" => "no_NO",
  "telephoneNumber" => "+46 840 839 298",
  "shopperEmail" => "youremail@email.com",
  "returnUrl" => "https://your-company.example.com/checkout?shopperOrder=12xy..",
  "merchantAccount" => "ADYEN_MERCHANT_ACCOUNT",
  "lineItems" => [
       [
          "quantity" => "1",
          "taxPercentage" => "2100",
          "description" => "Shoes",
          "id" => "Item #1",
          "amountExcludingTax" => "400",
          "taxAmount" => "69"
       ]
   ]
);
$result = $service->payments($params);
```

#### C\#

```cs
// SET YOUR ADYEN_API_KEY with the API key from the Customer Area.
var client = new Client ("ADYEN_API_KEY", Environment.Test);
var checkout = new Checkout(client);

var amount = new Model.Checkout.Amount("EUR", 1000);
var details = new Model.Checkout.DefaultPaymentMethodDetails{
  Type = "walley"
};
var paymentRequest = new Adyen.Model.Checkout.PaymentRequest
{
  Reference = "YOUR_ORDER_NUMBER",
  Amount = amount,
  ReturnUrl = @"https://your-company.example.com/checkout?shopperOrder=12xy..",
  MerchantAccount = "ADYEN_MERCHANT_ACCOUNT",
  PaymentMethod = details,
  CountryCode = "NO",
  ShopperLocale = "no_NO",
  TelephoneNumber = "+46 840 839 298",
  ShopperEmail = "youremail@email.com",
  LineItems = new List<LineItem>
   {
       new LineItem(quantity:1, taxPercentage:2100,
       description:"Shoes", id:"Item #1", amountExcludingTax:331, taxAmount:69)
   };
var paymentResponse = checkout.Payments(paymentsRequest);
```

#### NodeJS (JavaScript)

```js
// Adyen Node API Library v16.1.0
// Require the parts of the module you want to use
const { Client, CheckoutAPI } = require('@adyen/api-library');

// Initialize the client object
const client = new Client({apiKey: "ADYEN_API_KEY", environment: "TEST"});

// Create the request object
const paymentRequest = {
  merchantAccount: "ADYEN_MERCHANT_ACCOUNT",
  reference: "YOUR_ORDER_NUMBER",
  amount: {
    currency: "EUR",
    value: 1000
  },
  paymentMethod: {
    type: "walley"
  },
  lineItems: [ {
       quantity: "1",
       taxPercentage: "2100",
       description: "Shoes",
       id: "Item #1",
       amountExcludingTax: "331",
       taxAmount: "69"
  }, {
       quantity: "1",
       taxPercentage: "2100",
       description: "Shirt",
       id: "Item #2",
       amountExcludingTax: "400",
       taxAmount: "72"
       } ],
  countryCode: "NO",
  shopperLocale: "no_NO",
  telephoneNumber: "+46 840 839 298",
  shopperEmail: "youremail@email.com",
  returnUrl: "https://your-company.example.com/checkout?shopperOrder=12xy.."
}

// Make the request
const checkoutAPI = new CheckoutAPI(client);
const response = checkoutAPI.PaymentsApi.payments(paymentRequest, { idempotencyKey: "UUID" });
```

#### Python

```py
# Adyen Python API Library v12.0.0
import Adyen

adyen = Adyen.Adyen()
adyen.client.xapikey = "ADYEN_API_KEY"
adyen.client.platform = "test" # The environment to use library in.

json_request = {
  "merchantAccount": "ADYEN_MERCHANT_ACCOUNT",
  "reference": "YOUR_ORDER_NUMBER",
  "amount": {
    "currency": "EUR",
    "value": 1000
  },
  "paymentMethod": {
    "type": "walley"
  },
  "countryCode": "NO",
  "shopperLocale": "no_NO",
  "telephoneNumber": "+46 840 839 298",
  "shopperEmail": "youremail@email.com",
  "returnUrl": "https://your-company.example.com/checkout?shopperOrder=12xy..",
  "lineItems": [ {
    "quantity": "1",
    "amountExcludingTax": "331",
    "taxPercentage": "2100",
    "description": "Shoes",
    "id": "Item #1",
    "taxAmount": "69"
  }
 ]
}

result = adyen.checkout.payments_api.payments(request=json_request, idempotency_key="UUID")
```

#### Ruby

```rb
# Adyen Ruby API Library v9.1.0
require "adyen-ruby-api-library"

adyen = Adyen::Client.new
adyen.api_key = 'ADYEN_API_KEY'
adyen.env = :test # Set to "live" for live environment

request_body = {
  :merchantAccount => 'YOUR_MERCHANT_ACCOUNT',
  :reference => 'YOUR_ORDER_NUMBER',
  :amount => {
    :currency => 'EUR',
    :value => 1000
  },
  :paymentMethod => {
    :type => 'walley'
  },
  :countryCode => 'NO',
  :shopperLocale => 'no_NO',
  :telephoneNumber => '+46 840 839 298',
  :shopperEmail => 'youremail@email.com',
  :returnUrl => 'https://your-company.example.com/checkout?shopperOrder=12xy..',
  :lineItems => [ {
    :quantity => '1',
    :amountExcludingTax => '331',
    :taxPercentage => '2100',
    :description => 'Shoes',
    :id => 'Item #1',
    :taxAmount => '69'
  }
 ]
}

result = adyen.checkout.payments_api.payments(request_body, headers: { 'Idempotency-Key' => 'UUID' })
```

### API response

In the [/payments](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments) response, check the `action` object for the information that you must use to redirect the shopper.

**/payments response**

```json
{
  "resultCode":"RedirectShopper",
  "action":{
    "paymentMethodType":"walley",
    "method":"GET",
    "url":"https://checkoutshopper-test.adyen.com/checkoutshopper/checkoutPaymentRedirect?redirectData=...",
    "type":"redirect"
  }
}
```

If your integration is [set up correctly](/online-payments/build-your-integration/advanced-flow/?platform=Android\&integration=Drop-in#make-a-payment), the `action` object is passed from your server to the client.

## Check the payment result

Drop-in redirects the shopper to complete the payment. When the shopper returns back to your app, Drop-in provides the `actionComponentData` object.

From your server, make a POST [/payments/details](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments/details) request providing:

* `details`: The `actionComponentData.details` object from Drop-in.

**/payments/details request**

```bash
curl https://checkout-test.adyen.com/v72/payments/details \
-H 'x-api-key: ADYEN_API_KEY' \
-H 'content-type: application/json' \
-d '{
     "details": {
       "redirectResult": "eyJ0cmFuc1N0YXR1cyI6IlkifQ=="
   }
}'
```

You receive a response containing:

* `resultCode`: Use this to present the payment result to your shopper.
* `pspReference`: Our unique identifier for the transaction.

**/payments/details response**

```json
{
     "resultCode": "Authorised",
     "pspReference": "PPKFQ89R6QRXGN82"
}
```

## Show the payment result

1. Use the `resultCode` that you received in the [/payments/details](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments/details) response to present the payment result to your shopper.

You can receive the following `resultCode` values for Walley:

| resultCode                  | Description                                                                                                                                                                                                                                         | Action to take                                                                                                                                                                                                                         |
| --------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Authorised**              | The shopper completed their payment, and it has been sent to the bank for processing. In most cases, this means that you will receive the funds. If you are using manual capture, you also need to [capture the payment](/online-payments/capture). | Inform the shopper that the payment has been successful.                                                                                                                                                                               |
| **Cancelled**               | The shopper cancelled the payment while on their bank's website.                                                                                                                                                                                    | Ask the shopper whether they want to continue with the order, or ask them to select a different payment method.                                                                                                                        |
| **Error**                   | There was an error when the payment was being processed.                                                                                                                                                                                            | Inform the shopper that there was an error processing their payment. The response contains a `refusalReason`, indicating the cause of the error.                                                                                       |
| **Pending** or **Received** | The shopper has completed the payment but the final result is not yet known.                                                                                                                                                                        | Inform the shopper that you have received their order, and are waiting for the payment to be completed. You will receive the final result of the payment in an [AUTHORISATION webhook](/development-resources/webhooks/webhook-types). |
| **Refused**                 | The payment was refused by the shopper's bank.                                                                                                                                                                                                      | Ask the shopper to try the payment again using a different payment method.                                                                                                                                                             |

You also receive the outcome of the payment asynchronously in a [webhook](/development-resources/webhooks). If the shopper failed to return to your website or app, wait for notification webhooks to know the outcome of the payment. You can receive the following notification webhooks for Walley:

| eventCode         | success field | Description                                     | Action to take                                                                      |
| ----------------- | ------------- | ----------------------------------------------- | ----------------------------------------------------------------------------------- |
| **AUTHORISATION** | **false**     | The transaction failed.                         | Cancel the order and inform the shopper that the payment failed.                    |
| **AUTHORISATION** | **true**      | The shopper successfully completed the payment. | Inform the shopper that the payment has been successful and proceed with the order. |

## Test and go live

You can perform the test scenarios described on [Walley's technical documentation](https://dev.walleypay.com/docs/checkout/test-data) using Adyen's [/payments](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments) endpoint. Consider the following:

* Include the `CivRegNo` as the [socialSecurityNumber](https://docs.adyen.com/api-explorer/Checkout/latest/post/payments#request-socialSecurityNumber).
* When testing a Walley B2B transaction, provide the company information as shown in the following example:
  ```json
  "company": {
      "name": "Adyen N.V.",
      "registrationNumber": "5562000116"
  }
  ```

Check the status of Walley verification payments in your **Customer Area** > **Transactions** > **Payments**.

## See also

* [Android Drop-in integration guide](/online-payments/build-your-integration/sessions-flow/?platform=Android\&integration=Drop-in)
* [Webhooks](/development-resources/webhooks)
* [Tokenization for recurring payments](/online-payments/tokenization)
* [API Explorer](https://docs.adyen.com/api-explorer/#/CheckoutService/latest/overview)
