---
title: "PayPal Refund Transaction"
method: POST
path: "/paypal/refund"
tags: ["PayPal"]
---

# PayPal Refund Transaction

`POST /paypal/refund`

This refunds a settled transaction. In addition, it will return a  payload that includes the transaction’s refund details.

**Integration Methods:**
- Host Direct

See the [Integration Methods](/guides/quickstart#integration-methods) and [URLs Section](/guides/quickstart#urls) sections of the Development Quick Start guide for details regarding each processing option.

## Headers

- `InterfaceVersion` string, required
- `InterfaceName` string, required
- `CompanyName` string, required
- `AccessToken` string, uuid, required

## Request body

- object
  - `dateTime` string, ISO 8601, required — The date and time in ISO 8601 format including the timezone offset (yyyy-mm-ddThh:mm:ss.nnn+hh:mm). Must be sent as the local date/time of the merchant. For example, a request processed at a merchant in the Pacific time zone at 9:18am on April 15th 2021 would be sent as 2021-04-15T09:18:23.283-07:00
  - `amount` object, required
    - `total` number, required — The amount being charged for a particular transaction. If other amount fields are sent, they must be included in the total amount. Amount cannot be zero.
  - `transaction` object, required
    - `invoice` string, required — 10-digit invoice number assigned by the interface to identify a transaction. An invoice number serves as a unique key that identifies a transaction within a batch in Shift4's Gateway. **Note: For US and Canadian processing: Although the invoice number is sent as a JSON string it is a numeric value. No alpha characters are allowed.** **For processing outside of the US and Canada alpha characters are allowed.**
    - `originalInvoice` string, required — The invoice number from the original sale. Used to link the refund to the original sale. **Note: For US and Canadian processing: Although the invoice number is sent as a JSON string it is a numeric value. No alpha characters are allowed.** **For processing outside of the US and Canada alpha characters are allowed.**
    - `originalDate` string, ISO 8601, required — The date and time of the original transaction request in ISO 8601 format including the timezone offset (yyyy-mm-ddThh:mm:ss.nnn+hh:mm). Must be an exact match for the value sent in the original transaction request.

## Response `200`

Transaction was processed

- object
  - `result` object[]
    - `dateTime` string, ISO 8601, required — The date and time in ISO 8601 format including the timezone offset (yyyy-mm-ddThh:mm:ss.nnn+hh:mm). Must be sent as the local date/time of the merchant. For example, a request processed at a merchant in the Pacific time zone at 9:18am on April 15th 2021 would be sent as 2021-04-15T09:18:23.283-07:00
    - `amount` object, required
      - `total` number, required — The amount being charged for a particular transaction. If other amount fields are sent, they must be included in the total amount. Amount cannot be zero.
    - `merchant` MerchantResponse
      - `mid` number — The merchant ID associated with the merchant account.
      - `name` string — The merchant’s business name as configured with Shift4.
    - `payPal` object, required
      - `transactionId` string, required — Unique identifier.
      - `legacyId` string, required — Legacy unique identifier.
      - `orderId` string, required — Additional information about the transaction.
      - `status` string, required — The current status of this transaction.
    - `transaction` object, required
      - `authSource` 'E' | 'O' | 'A' | 'F', required — In a response, a code returned by the processor to indicate which host issued the response. Value | Description -------|---------------------------- E | Engine (Online) O | Offline A | APM (Online) F | Payment Platform (Online)
      - `invoice` string, required — 10-digit invoice number assigned by the interface to identify a transaction. An invoice number serves as a unique key that identifies a transaction within a batch in Shift4's Gateway. **Note: For US and Canadian processing: Although the invoice number is sent as a JSON string it is a numeric value. No alpha characters are allowed.** **For processing outside of the US and Canada alpha characters are allowed.**
      - `responseCode` 'A' | 'C' | 'D' | 'e' | 'f' | 'P' | 'R' | 'X' | 'S' | 'I', required — Code indicating the Shift4 host response. Value | Description | Details -------|---------------------------------------------------------------------------------------|-------- A | Approved | The transaction is approved. C | Approved | The transaction is approved without requiring additional authorization because it is less than or equal to a ceiling amount. (The ceiling amount is the original authorization amount multiplied by the tolerance per the merchant’s settings with Shift4.) D | Declined | The transaction is declined. <b>Note: Shift4 automatically declines AVS/CSC failures if the [POSHANDLEAVSFAIL Api Option](/guides/appendices/api-options#poshandleavsfail) was not sent in the request.</b> e | [Error](/guides/appendices/error-codes) | There is an error condition. f | [AVS or CSC failure](/guides/response-handling/understanding-avs-and-csc-verification)| An AVS or CSC failure has occurred (credit card only). <b>Note: This value will only be returned if the [POSHANDLEAVSFAIL Api Option](/guides/appendices/api-options#poshandleavsfail) was sent in the request.</b> P | [Partial approval](/guides/advanced-concepts/partial-approval) | A partial approval has occurred. Check `amount.total` for the approved amount. R | Voice referral | The transaction requires a voice referral. [blank]| Status is unknown | The approval status is unknown. X | Expired card | There is an error condition due to the card being expired. S | SCA Online PIN required | The contactless EMV transaction requires strong customer authentication to continue. The terminal must gather the online PIN if supported by the device form factor and CVM list then resubmit the transaction request. I | SCA Interface switch required | The contactless EMV transaction requires strong customer authentication to continue. The terminal must look at the form factor indicator to determine if the transaction should be declined, switched to EMV contact or tapped again using CDCVM. J | Soft decline after exemption request | Transaction was soft declined. Returned when requesting an exemption by sending `transaction.exemptionAction = 02` and the card issuer rejects the exemption.
    - `server` object, required
      - `name` string, required — The name of the server that processed the request.

---

[API](https://skmtc.dev/shift4/apis/shift4-payment-api.md) · [All operations](https://skmtc.dev/shift4/apis/shift4-payment-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/shift4/shift4-payment-api/revisions/b923fc55b203/schema)