# Refund Pix (/en/docs/pix-processamento/endpoints/refunds/post_refund)

## POST /refund/{transactionId}

`POST https://api.payzu.processamento.com/v1/refund/{transactionId}`

Refund a received Pix charge. Provide `amount` for a partial refund, or omit it to refund the full amount. Processing is **asynchronous**: the response returns the transaction with `refundStatus: PENDING`; completion is confirmed later by webhook. Send `{}` to refund the full amount. Token permission: `WITHDRAW`.

Guia: MED (/docs/pix-processamento/med)

### Path params

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `transactionId` | string | yes | ID of the transaction to refund. |

### Body params

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `amount` | number | no | Amount in BRL to refund. Omit to refund the full transaction amount. Partial refunds are allowed up to the original amount. |
| `description` | string | no | Free-text description for the refund. |
| `clientReference` | string | no | Idempotency key. Reusing it with the same amount replays the existing refund; reusing it with a different amount is rejected. — minLength: 1; maxLength: 64 |

### Responses

**200** Refund accepted and enqueued (asynchronous).

**400** Invalid request

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |

**401** Authentication failure

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |

**403** Operation not allowed

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |

**404** Resource not found

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |

**409** Conflict with the current state of the resource

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |

**422** Refund not allowed for this transaction or amount.

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |

**429** Rate limit exceeded

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |

**500** Internal error

| Field | Type | Required | Details |
| --- | --- | --- | --- |
| `status` | string | yes | Fixed marker of an error response. |
| `error` | string | yes | Name of the corresponding HTTP status. |
| `errorCode` | string | yes | Stable machine-readable error code, when available. |
| `message` | string | yes | Human-readable error message. |
| `statusCode` | integer | yes | HTTP status code. |
| `requestId` | string | yes | Unique request correlation ID (cuid). Include it when contacting support. |
| `details` | object[] | no | Field-level validation errors, when applicable. |
| `details.field` | string | yes | Path of the field rejected in validation, without the leading slash. |
| `details.message` | string | yes | Reason that field was rejected, in Portuguese. |
| `retryAfterSeconds` | integer | no | Seconds to wait before retrying. Present only on 429 responses. |