# Refunds

To request for a Zapper refund, the Zapper ID (unique Zapper payment identifier) is required. The Zapper ID may be obtained in 1 of 2 ways: 

1.  Zapper provides the Zapper ID in the body of a payment notification. An integration may store the Zapper ID against the payment and retrieve it if necessary for the refund request. 
2. The Customer may be asked to provide the Zapper ID referring to the "Payment History" on the Zapper application.

## Refunds

<mark style="color:green;">`POST`</mark> `https://api.zapper.com/business/api/v1/merchants/{merchantId}/refunds`

This endpoint allows you to request a Zapper refund on the customer's behalf.

#### Path Parameters

| Name       | Type   | Description              |
| ---------- | ------ | ------------------------ |
| merchantId | string | The merchant identifier. |

#### Query Parameters

| Name     | Type   | Description                   |
| -------- | ------ | ----------------------------- |
| zapperId | string | The Zapper payment identifier |

#### Headers

| Name          | Type   | Description                                |
| ------------- | ------ | ------------------------------------------ |
| Authorization | string | Bearer \<integration authentication token> |

#### Request Body

| Name                     | Type   | Description                                                                                         |
| ------------------------ | ------ | --------------------------------------------------------------------------------------------------- |
| invoiceCreatedUTCDate    | string | The UTC date when the invoice was created.                                                          |
| invoiceExternalReference | string | The external reference for an invoice (e.g. The merchant's invoice reference)                       |
| origin Reference         | string | The unique identifier for the integration                                                           |
| origin                   | string | The integration source (e.g the name of the integration/POS/store to help identify the integration) |
| amount                   | string | The refund amount being requested in cents (must not exceed the processed amount)                   |

{% tabs %}
{% tab title="200 Refund request successful." %}

```
```

{% endtab %}

{% tab title="400 Invalid Zapper ID or amount requested is greater than processed amount" %}

```
```

{% endtab %}

{% tab title="403 Authorization token not provided or invalid" %}

```
{
    "Message": "User is not authorized to access this resource with an explicit deny"
}
```

{% endtab %}

{% tab title="500 Internal Server Error" %}

```
```

{% endtab %}
{% endtabs %}