# Save cards with the JavaScript SDK (/sdk/js/v5/save-with-purchase/cards)



After customers save their credit or debit card, they can select it for faster checkout. Customers won't have to enter payment details for future transactions.

Use the JavaScript SDK to save a payer's card if you aren't [PCI Compliant - SAQ A](https://www.pcisecuritystandards.org/pci_security/completing_self_assessment) but want to save credit or debit cards during checkout.

## Availability [#availability]

#### See Supported Countries [#see-supported-countries]

* Australia
* Austria
* Belgium
* Bulgaria
* Canada
* China
* Cyprus
* Czech Republic
* Denmark
* Estonia
* Finland
* France
* Germany
* Hong Kong
* Hungary
* Ireland
* Italy
* Japan
* Latvia
* Liechtenstein
* Lithuania
* Luxembourg
* Malta
* Netherlands
* Norway
* Poland
* Portugal
* Romania
* Singapore
* Slovakia
* Slovenia
* Spain
* Sweden
* United Kingdom
* United States

## Know before you code [#know-before-you-code]

* This integration requires a PayPal Developer account.
* You'll need to have an existing [advanced credit and debit card payments](/v5/expanded/overview/) integration. PayPal must approve your account to process advanced credit and debit card payments.
* Complete the steps in [Get started](/api/rest/) to get the following sandbox account information from the Developer Dashboard:
  * The sandbox client ID and secret of[your REST app](https://www.paypal.com/signin?returnUri=https%3A%2F%2Fdeveloper.paypal.com%2Fdeveloper%2Fapplications\&intent=developer).
  * An access token to use the PayPal REST API server.
* This client-side and server-side integration uses the following:
  * [PayPal JavaScript SDK](/sdk/js/reference)
  * [Orders REST API](/api/orders/v2)

## How it works? [#how-it-works]

PayPal encrypts payment method information and stores it in a digital vault for that customer.

1. The payer saves their payment method.
2. For a first-time payer, PayPal creates a customer ID. Store this within your system for future use.
3. When the customer returns to your website and is ready to check out, pass their PayPal-generated customer ID to the JavaScript SDK. The customer ID tells the JavaScript SDK to save or reuse a saved payment method.
4. The payer completes a billing agreement.
5. The JavaScript SDK populates the checkout page with each saved payment method. Each payment method appears as a one-click button next to other ways to pay.

The checkout process is now shorter because it uses saved payment information.

## Use Cases [#use-cases]

Businesses save payment methods if they want customers to:

* Check out without re-entering a payment method
* Pay after use, for example, ride-sharing and food delivery

## 1. Set up sandbox to save payment methods [#1-set-up-sandbox-to-save-payment-methods]

Set up your sandbox and live business accounts to save payment methods:

1. Log in to the Developer Dashboard.
2. Under **REST API apps**, select your app name.
3. Under **Sandbox App Settings** > **App Feature Options**, check **Accept payments**.
4. Expand **Advanced options**. Confirm that **Vault** is selected.

## 2. Add checkbox for payers to save card [#2-add-checkbox-for-payers-to-save-card]

Add a `checkbox` element grouped with your card collection fields to give payers the option to save their card.

```javascript lineNumbers
<div>
  <input type="checkbox" id="save" name="save">
  <label for="save">Save your card</label>
</div>
```

## 3. Pass Checkbox Value [#3-pass-checkbox-value]

Pass `document.getElementById("save").checked` to your server with the following details in the `createOrder()` method:

* Value of the checkbox
* Optional: Card name
* Optional: Billing address

#### No Verification [#no-verification]

```javascript lineNumbers
const cardFields = paypal.CardFields({
  createOrder: (data) => {
    // Create the order on your server and return the order ID
    const saveCheckbox = document.getElementById("save");
    return fetch("/api/paypal/order/create/", {
      method: "POST",
      body: JSON.stringify({
        // Include the saveCheckbox.checked value
        // Optionally, include the card name and billing address
      }),
    })
      .then((res) => {
        return res.json();
      })
      .then((orderData) => {
        // Return the order ID that was created on your server
        return orderData.id;
      });
  },
  onApprove: function (data) {
    // Authorize or capture the order on your server
    const { orderID } = data;
    return fetch("/api/paypal/orders/${orderID}/capture/", {
      method: "POST",
    })
      .then((res) => {
        return res.json();
      })
      .then((orderData) => {
        // Retrieve vault details from the response
        const vault = orderData?.paymentSource?.card?.attributes?.vault;
        if (vault) {
          // Save the vault.id and vault.customer.id for future use
        }
        // Handle successful transaction
      });
  },
  onError: function (error) {
    // Handle any error that may occur
  },
});
if (cardFields.isEligible()) {
  cardFields.NameField().render("#card-name-field-container");
  cardFields.NumberField().render("#card-number-field-container");
  cardFields.ExpiryField().render("#card-expiry-field-container");
  cardFields.CVVField().render("#card-cvv-field-container");
} else {
  // Handle the workflow when credit and debit cards are not available
}
const submitButton = document.getElementById("submit-button");
submitButton.addEventListener("click", () => {
  cardFields
    .submit()
    .then(() => {
      // Handle successful transaction
    })
    .catch((error) => {
      // Handle any error that may occur
    });
});
```

#### 3D Secure [#3d-secure]

To trigger the authentication, pass the required contingency with the verification method in the create orders payload. The verification method can be contingencies parameter with `SCA_ALWAYS` or `SCA_WHEN_REQUIRED`.

`SCA_ALWAYS` triggers an authentication for every transaction, while `SCA_WHEN_REQUIRED` triggers an authentication only when a regional compliance mandate such as PSD2 is required. 3D Secure is supported only in countries with a [PSD2 compliance mandate](https://www.paypal.com/uk/webapps/mpp/PSD2?_ga=1.51925228.43968804.1640649786PSD2).

```javascript lineNumbers
const cardFields = paypal.CardFields({
  createOrder: (data) => {
    // Create the order on your server and return the order ID
    const saveCheckbox = document.getElementById("save");
    return fetch("/api/paypal/order/create/", {
      method: "POST",
      body: JSON.stringify({
        // Include the saveCheckbox.checked value
        // Optionally, include the card name and billing address
        // Pass in the 3DS contingency as a verification attribute along with the payment source
        ...
          card: {
            attributes: {
              verification: {
                        method: "SCA_ALWAYS",//SCA_WHEN_REQUIRED is also another option for the verification method
                    },
                },
            experience_context: {
                shipping_preference: "NO_SHIPPING",
                return_url: "https://example.com/returnUrl",
                cancel_url: "https://example.com/cancelUrl",
              },
            },
      }),
    }).then((res) => {
      return res.json();
    }).then((orderData) => {
      // Return the order ID that was created on your server
      return orderData.id;
    });
  },
  onApprove: function (data) {
    // Authorize or capture the order on your server
    const { liabilityshift, orderID } = data;
      if(liabilityShift) {
         /* Handle liability shift. More information in the response parameters */
        }
    return fetch('/api/paypal/orders/${orderID}/capture/', {
      method: "POST"
    }).then((res) => {
      return res.json();
    }).then((orderData) => {
      // Retrieve vault details from the response
      const vault = orderData?.paymentSource?.card?.attributes?.vault;
      if (vault) {
        // Save the vault.id and vault.customer.id for future use
      }
      // Handle successful transaction
    });
  },
  onError: function (error) {
    // Handle any error that may occur
  }
});
if (cardFields.isEligible()) {
  cardFields.NameField().render("#card-name-field-container");
  cardFields.NumberField().render("#card-number-field-container");
  cardFields.ExpiryField().render("#card-expiry-field-container");
  cardFields.CVVField().render("#card-cvv-field-container");
} else {
  // Handle the workflow when credit and debit cards are not available
}
const submitButton = document.getElementById("submit-button");
submitButton.addEventListener("click", () => {
  cardFields.submit().then(() => {
    // Handle successful transaction
  }).catch((error) => {
    // Handle any error that may occur
  });
});
```

## Create Order and Save Card [#create-order-and-save-card]

### Server side [#server-side]

Set up your server to call the Create Order API. The button that the payer selects determines the `payment_source` sent in the following sample.

This SDK uses the Orders v2 API to save payment methods in the background. Use the following request using the Orders API to add attributes needed to save a card.

#### First Time Payer [#first-time-payer]

#### Save payment method for first-time payers [#save-payment-method-for-first-time-payers]

This request is for payers who:

* Don't have a payment source saved into the vault.
* Selected the save checkbox. The `document.getElementById("save").checked` value is `true`.

To run 3D Secure on the card, set the `payment_source.card.attributes.verification.method` to `SCA_ALWAYS` or `SCA_WHEN_REQUIRED`.

`SCA_ALWAYS` triggers an authentication for every transaction, while `SCA_WHEN_REQUIRED` triggers an authentication only when a regional compliance mandate such as PSD2 is required. 3D Secure is supported only in countries with a [PSD2 compliance mandate](https://www.paypal.com/uk/webapps/mpp/PSD2?_ga=1.51925228.43968804.1640649786PSD2). .

> **Note:** **Note:** In the following requests, the `payment_source.attributes.vault.store_in_vault` with the value `ON_SUCCESS` means the card is saved with a successful authorization or capture.

```javascript lineNumbers
curl -v -X POST https://api-m.sandbox.paypal.com/v2/checkout/orders \
 -H "Content-Type: application/json" \
 -H "Authorization: Bearer 'ACCESS-TOKEN'" \
 -d '{
      "intent": "CAPTURE",
      "purchase_units": [{
        "reference_id": "d9f80740-38f0-11e8-b467-0ed5f89f718b",
        "amount": {
          "currency_code": "USD",
          "value": "100.00"
        }
      }],
      "payment_source": {
        "card": {
          "name": "Firstname Lastname",
          "billing_address": {
            "address_line_1": "123 Main St.",
            "address_line_2": "Unit B",
            "admin_area_2": "Anytown",
            "admin_area_1": "CA",
            "postal_code": "12345",
            "country_code": "US"
          },
          "attributes": {
            "vault": {
              "store_in_vault": "ON_SUCCESS"
            },
            "verification": {
              "method": "SCA_ALWAYS"
            }
          }
        }
      }
    }
```

#### Returning Payer [#returning-payer]

#### Save payment method for returning payers [#save-payment-method-for-returning-payers]

This request is for payers who:

* Already have a payment method saved in the vault.
* Want to save another payment method to the vault.
* Selected the save checkbox. The `document.getElementById("save").checked` value is `true`.

Pass the PayPal-generated `customer.id` as part of this request. Link additional `payment_sources` to this customer through their `customer.id`. The `customer.id` is returned in the response from an `authorize` or `capture` request.

```javascript lineNumbers
curl -v -X POST https://api-m.sandbox.paypal.com/v2/checkout/orders \
 -H "Content-Type: application/json" \
 -H "Authorization: Bearer 'ACCESS-TOKEN'" \
 -d '{
      "intent": "CAPTURE",
      "purchase_units": [{
        "reference_id": "d9f80740-38f0-11e8-b467-0ed5f89f718b",
        "amount": {
          "currency_code": "USD",
          "value": "100.00"
        }
      }],
      "payment_source": {
        "card": {
          "name": "Firstname Lastname",
          "billing_address": {
            "address_line_1": "123 Main St.",
            "address_line_2": "Unit B",
            "admin_area_2": "Anytown",
            "admin_area_1": "CA",
            "postal_code": "12345",
            "country_code": "US"
          },
          "attributes": {
            "customer" : {
                "id": "'PayPal-generated customer id'"
            },
            "vault": {
              "store_in_vault": "ON_SUCCESS"
            },
          }
        }
      }
    }
```

#### Response [#response]

Pass the order `id` to the JavaScript SDK. The SDK updates the order with the new card details. PayPal handles any PCI compliance issues.

After the SDK is updated, it triggers the `onApprove()` method, which receives an object containing the `orderID`. You can authorize or capture the order when you have the `orderID`.

> **Note:** **Note:** The request to save the payment method is made when the order is created through `payment_source.attributes.vault.store_in_vault`. Vault details are available only after an order is authorized or captured.

```javascript lineNumbers
{
    "id": "5O190127TN364715T",
    "status": "CREATED",
    "intent": "CAPTURE",
    "payment_source": {
      "card": {
        "brand": "VISA",
        "last-digits": "1881",
        "billing_address": {
          "address_line_1": "123 Main St.",
          "address_line_2": "Unit B",
          "admin_area_2": "Anytown",
          "admin_area_1": "CA",
          "postal_code": "12345",
          "country_code": "US"
        }
      }
    },
    "purchase_units": [{
      "reference_id": "d9f80740-38f0-11e8-b467-0ed5f89f718b",
      "amount": {
        "currency_code": "USD",
        "value": "100.00"
      }
    }],
    "create_time": "2021-10-28T21:18:49Z",
    "links": [{
        "href": "https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T",
        "rel": "self",
        "method": "GET"
      },
      {
        "href": "https://www.sandbox.paypal.com/checkoutnow?token=5O190127TN364715T",
        "rel": "approve",
        "method": "GET"
      },
      {
        "href": "https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T",
        "rel": "update",
        "method": "PATCH"
      },
      {
        "href": "https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T/capture",
        "rel": "capture",
        "method": "POST"
      }
    ]
  }
```

## 5. Authorize or capture order and save card [#5-authorize-or-capture-order-and-save-card]

### Server side [#server-side-1]

Set up your server to call the [v2 Orders API](/api/orders/v2/):

* Call the [authorize order endpoint](/api/orders/v2/orders-authorize) if the `intent` passed was `AUTHORIZE`.
* Call the [capture order endpoint](/api/orders/v2/orders-capture) if the `intent` passed was `CAPTURE`.

### Request [#request]

#### Authorize or capture order request [#authorize-or-capture-order-request]

### Authorize [#authorize]

```javascript lineNumbers
curl -v -X POST https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T/authorize \
 -H "Content-Type: application/json" \
 -H "Authorization: Bearer 'ACCESS-TOKEN'" \
 -d '{}'
```

#### Capture [#capture]

```javascript lineNumbers
curl -v -X POST https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T/capture \
 -H "Content-Type: application/json" \
 -H "Authorization: Bearer 'ACCESS-TOKEN'" \
 -d '{}'
```

#### Response [#response-1]

```javascript lineNumbers
{
    "id": "5O190127TN364715T",
    "status": "COMPLETED",
    "payment_source": {
      "card": {
        "brand": "VISA",
        "last_digits": "4949"
        "attributes": {
          "vault": {
            "id": "nkq2y9g",
            "customer": {
                "id": "695922590"
            },
            "status": "VAULTED",
            "links": [{
                "href": "https://api-m.sandbox.paypal.com/v3/vault/payment-tokens/nkq2y9g",
                "rel": "self",
                "method": "GET"
              },
              {
                "href": "https://api-m.sandbox.paypal.com/v3/vault/payment-tokens/nkq2y9g",
                "rel": "delete",
                "method": "DELETE"
              },
              {
                "href": "https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T",
                "rel": "up",
                "method": "GET"
              }
            ]
          }
        }
      }
    },
    "purchase_units": [{
      "reference_id": "d9f80740-38f0-11e8-b467-0ed5f89f718b",
      "payments": {
        "captures": [{
          "id": "3C679366HH908993F",
          "status": "COMPLETED",
          "amount": {
            "currency_code": "USD",
            "value": "100.00"
          },
          "seller_protection": {
            "status": "NOT_ELIGIBLE"
          },
          "final_capture": true,
          "seller_receivable_breakdown": {
            "gross_amount": {
              "currency_code": "USD",
              "value": "100.00"
            },
            "paypal_fee": {
              "currency_code": "USD",
              "value": "3.00"
            },
            "net_amount": {
              "currency_code": "USD",
              "value": "97.00"
            }
          },
          "create_time": "2022-01-01T21:20:49Z",
          "update_time": "2022-01-01T21:20:49Z",
          "processor_response": {
              "avs_code": "Y",
              "cvv_code": "M",
              "response_code": "0000"
          },
          "links": [{
              "href": "https://api-m.sandbox.paypal.com/v2/payments/captures/3C679366HH908993F",
              "rel": "self",
              "method": "GET"
            },
            {
              "href": "https://api-m.sandbox.paypal.com/v2/payments/captures/3C679366HH908993F/refund",
              "rel": "refund",
              "method": "POST"
            }
          ]
        }]
      }
    }],
    "links": [{
      "href": "https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T",
      "rel": "self",
      "method": "GET"
    }]
}
```

In the response from the Authorize or Capture request, the Orders v2 API interacts with the Payment Method Tokens v3 API to save the card.

The `payment_source.card.attributes.vault` stores the card information as the `vault.id`, which can be used for future payments when the `vault.status` is `VAULTED`.

#### Save approved payment source [#save-approved-payment-source]

If the payment has been authorized or captured, the payer does not need to be present to save a `payment_source`. To keep checkout times as short as possible, the Orders API responds as soon as payment is captured.

If the `attributes.vault.status` returned after payment is `APPROVED`, you won't have a `vault.id` yet. An example of the `attributes` object from this scenario is in the following sample:

```javascript lineNumbers
"attributes": {
    "vault": {
      "status": "APPROVED",
      "links": [
        {
          "href": "https://api-m.sandbox.paypal.com/v2/checkout/orders/5O190127TN364715T",
          "rel": "up",
          "method": "GET"
        }
      ]
    }
  }
```

The Payment Method Tokens API still saves the payment source even after the Orders API returns its response and sends a webhook after the payment source is saved.

In order to retrieve a `vault_id` when an `APPROVED` status is returned, you'll need to subscribe to the `VAULT.PAYMENT-TOKEN.CREATED` [webhook](/api/rest/webhooks/).

The Payment Method Tokens API sends a webhook after the payment source is saved. An example of the `VAULT.PAYMENT-TOKEN.CREATED` webhook payload is shown in the following sample:

```javascript lineNumbers
{
     "id":"WH-1KN88282901968003-82E75604WM969463F",
     "event_version":"1.0",
     "create_time":"2022-08-15T14:13:48.978Z",
     "resource_type":"payment_token",
     "resource_version":"3.0",
     "event_type":"VAULT.PAYMENT-TOKEN.CREATED",
     "summary":"A payment token has been created.",
     "resource":{
        "time_created":"2022-08-15T07:13:48.964PDT",
        "links":[
           {
              "href":"https://api-m.sandbox.paypal.com/v3/vault/payment-tokens/9n6724m",
              "rel":"self",
              "method":"GET",
              "encType":"application/json"
           },
           {
              "href":"https://api-m.sandbox.paypal.com/v3/vault/payment-tokens/9n6724m",
              "rel":"delete",
              "method":"DELETE",
              "encType":"application/json"
           }
        ],
        "id":"nkq2y9g",
        "payment_source":{
           "card":{
              "last_digits":"1111",
              "brand":"VISA",
              "expiry":"2027-02",
              "billing_address":{
                 "address_line_1":"123 Main St.",
                 "address_line_2":"Unit B",
                 "admin_area_2":"Anytown",
                 "admin_area_1":"CA",
                 "postal_code":"12345",
                 "country_code":"US"
              }
           }
        },
        "customer":{
           "id":"695922590"
        }
     },
     "links":[
        {
           "href":"https://api-m.sandbox.paypal.com/v1/notifications/webhooks-events/WH-1KN88282901968003-82E75604WM969463F",
           "rel":"self",
           "method":"GET"
        },
        {
           "href":"https://api-m.sandbox.paypal.com/v1/notifications/webhooks-events/WH-1KN88282901968003-82E75604WM969463F/resend",
           "rel":"resend",
           "method":"POST"
        }
     ]
  }
```

In this example, the `resource.id` field is the vault ID, and `resource.customer.id` is the PayPal-generated customer ID.

You can now style your card fields and test a purchase.

#### Payment processor codes [#payment-processor-codes]

Payment processors return the following codes when they receive a transaction request. For advanced card payments, the code displays in the authorization object under the `response_code` field.

The following sample shows the processor response codes returned in an authorization (`avs_code`) and capture call (`cvv_code`) response:

```javascript lineNumbers
"processor_response": {
    "avs_code": "Y",
    "cvv_code": "S",
    "response_code": "0000"
  }
```

See the Orders API `response_code` object to get the [processor response code for the non-PayPal payment processor errors](/api/orders/v2/definitions/processor_response).

## 6. Pay with saved payment methods [#6-pay-with-saved-payment-methods]

When a payer returns to your site, you can show the payer's saved payment methods with the Payment Method Tokens API.

### List all saved payment methods [#list-all-saved-payment-methods]

Make the server-side [list all payment tokens API call](/api/payment-tokens/v3/customer-payment-tokens-get) to retrieve payment methods saved to a payer's PayPal-generated customer ID. Based on this list, you can show all saved payment methods to a payer to select during checkout.

### Show saved card to payer [#show-saved-card-to-payer]

Display the saved card to the payer and use the Orders API to make another transaction. Use the vault ID the payer selects as an input to the Orders API.

Use [supported CSS properties](/expanded/card-field-styling) to style the card fields.

## 7. Test your integration [#7-test-your-integration]

Test your vault integration in the PayPal sandbox.

1. Copy the sample request code.
2. Change `'ACCESS_TOKEN'` to your [access token](/api/rest/authentication/).

### Save payment method [#save-payment-method]

1. On the checkout page, enter the card information and select the option to save the card. See the [Test Cards](#test-cards) section for test cards you can use to test payments in the sandbox.
2. Capture the transaction.
3. Log in to [sandbox](https://www.sandbox.paypal.com/) with your merchant account and verify the transaction.

### Pay with a saved payment method [#pay-with-a-saved-payment-method]

1. Use the [list all payment tokens](/api/payment-tokens/v3/customer-payment-tokens-get) API to retrieve all the payment methods saved for the payer.
2. Capture the payment by passing the payer-selected vault ID to the Orders API.
3. Log in to the [sandbox](https://www.sandbox.paypal.com/) with your merchant account and verify the transaction.

## 8. Integrate front end [#8-integrate-front-end]

The following sample shows how a full script to save cards might appear in HTML:

```javascript lineNumbers
<!DOCTYPE html>
      <head>
        <!-- Add meta tags for mobile and IE -->
        <meta charset="utf-8" />
      </head>
      <body>
        <script src="https://www.paypal.com/sdk/js?components=card-fields&client-id=YOUR-CLIENT-ID&currency=USD&intent=capture&merchant-id=YOUR-MERCHANT-ID"></script>
        <div align="center"> or </div>
        <!-- Advanced credit and debit card payments form -->
        <div class='card_container'>
          <div id='card-number'></div>
          <div id='expiration-date'></div>
          <div id='cvv'></div>
          <div id='card-holder-name'></div>
          <label>
            <input type='checkbox' id='vault' name='vault' /> Vault
          </label>
          <br><br>
          <button value='submit' id='submit' class='btn'>Pay</button>
        </div>
        <!-- Implementation -->
        <script>
          // Create the card fields component and define callbacks
          const cardFields = paypal.CardFields({
            createOrder: async (data) => {
              const result = await fetch("https://api-m.sandbox.paypal.com/v2/checkout/orders", {
                method: "POST",
                body: JSON.stringify({
                  intent: "CAPTURE",
                  purchase_units: [{
                    amount: {
                      currency_code: "USD",
                      value: "100.00"
                    }
                  }],
                  payment_source: {
                    card: {
                      attributes: {
                        verification: {
                          method: "SCA_ALWAYS"
                        },
                        vault: {
                          store_in_vault: "ON_SUCCESS",
                          usage_type: "PLATFORM",
                          customer_type: "CONSUMER",
                          permit_multiple_payment_tokens: true,
                        },
                      }
                    },
                    experience_context: {
                      shipping_preference: "NO_SHIPPING",
                      return_url: "https://example.com/returnUrl",
                      cancel_url: "https://example.com/cancelUrl",
                    },
                  },
                }),
                headers: {
                  "Content-Type": "application/json",
                  "Authorization": "Bearer ACCESS_TOKEN",
                  "PayPal-Request-Id": "UNIQUE_ALPHANUMERIC_KEY"
                },
              })
              const {
                id
              } = await result.json();
              return id;
            },
            onApprove: async (data) => {
              const {
                orderID
              } = data;
              return fetch('https://api-m.sandbox.paypal.com/v2/checkout/orders/${orderID}/capture/', {
                method: "POST",
                body: JSON.stringify({
                  payment_source: {
                    attributes: {
                      vault: {
                        store_in_vault: "ON_SUCCESS",
                        usage_type: "PLATFORM",
                        customer_type: "CONSUMER",
                        permit_multiple_payment_tokens: true,
                      },
                    },
                    experience_context: {
                      shipping_preference: "NO_SHIPPING",
                      return_url: "https://example.com/returnUrl",
                      cancel_url: "https://example.com/cancelUrl",
                    },
                  },
                }),
                headers: {
                  "Content-Type": "application/json",
                  "Authorization": "Bearer ACCESS_TOKEN",
                  "PayPal-Request-Id": "UNIQUE_ALPHANUMERIC_KEY"
                },
              })
              // Retrieve vault details from the response and
              // save vault.id and customer.id for the buyer's return experience
              return await res.json();
            },
            onError: (error) => console.error('Something went wrong:', error)
          });
          // Render each field after checking for eligibility
          // Check eligibility and display advanced credit and debit card payments
          if (cardFields.isEligible()) {
            cardFields.NameField().render("#card-holder-name");
            cardFields.NumberField().render("#card-number");
            cardFields.ExpiryField().render("#expiration-date");
            cardFields.CVVField().render("#cvv");
          } else {
            // Handle workflow when credit and debit cards are not available
          }
          const submitButton = document.getElementById("submit");
          submitButton.addEventListener("click", () => {
            cardFields
              .submit()
              .then(() => {
                console.log("submit was successful");
              })
              .catch((error) => {
                console.error("submit erred:", error);
              });
          });
        </script>
        </html>
```

## Test Cards [#test-cards]

Use the following card numbers to test transactions in the sandbox:

| Test number        | Card type        |
| ------------------ | ---------------- |
| `371449635398431`  | American Express |
| `376680816376961`  | American Express |
| `36259600000004`   | Diners Club      |
| `6304000000000000` | Maestro          |
| `5063516945005047` | Maestro          |
| `2223000048400011` | Mastercard       |
| `4005519200000004` | Visa             |
| `4012000033330026` | Visa             |
| `4012000077777777` | Visa             |
| `4012888888881881` | Visa             |
| `4217651111111119` | Visa             |
| `4500600000000061` | Visa             |
| `4772129056533503` | Visa             |
| `4915805038587737` | Visa             |

## Test Steps [#test-steps]

* [Test and go live](/api/rest/production/) with this integration.
  * Complete [production onboarding](https://www.paypal.com/bizsignup/entry/product/ppcp) to be eligible to process cards with your live PayPal account.
  * Be sure to swap the credentials and API URL from sandbox to production when going live with your integration.
* Follow [Use payment method token with checkout](/api/payment-tokens/save-without-purchase/cards) for subsequent or recurring transactions.
* You can [get a payment token](/api/payment-tokens/v3/payment-tokens-get), [list all payment tokens](/api/payment-tokens/v3/customer-payment-tokens-get), [delete a payment token](/api/payment-tokens/v3/payment-tokens-delete), and more with the Payment Method Tokens API.
* Keep saved cards up-to-date with the [real-time account updater](/docs/checkout/advanced/customize/rtau/).