> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fastflowpe.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Reverse a completed PayIn transaction back to the customer's original payment method using the FastFlowPe Refund APIs — initiate a refund, then track its status.

Refunds let you return funds from a successful PayIn transaction back to the customer's original payment source. FastFlowPe processes refunds asynchronously: you initiate a refund, receive a refund transaction ID, and then poll (or listen to webhooks) for the final settlement status.

## How refunds work

<Steps>
  <Step title="Initiate the refund">
    Call [Initiate Refund](/refunds/initiate-refund) with the original PayIn `transaction_id` and the amount to refund. FastFlowPe returns a unique `refund_transaction_id`.
  </Step>

  <Step title="Track the status">
    Use [Check Refund Status](/refunds/check-refund-status) with the `refund_transaction_id` to confirm whether the refund has been credited back to the customer.
  </Step>

  <Step title="Receive webhook updates">
    Configure a [webhook callback](/webhooks/callback-configuration) to receive real-time refund status changes instead of polling.
  </Step>
</Steps>

## Available APIs

<CardGroup cols={2}>
  <Card title="Initiate Refund" icon="undo-2" href="/refunds/initiate-refund">
    Create a refund request against a completed PayIn transaction.
  </Card>

  <Card title="Check Refund Status" icon="search" href="/refunds/check-refund-status">
    Retrieve the current processing state of a refund by refund transaction ID.
  </Card>
</CardGroup>

<Note>
  Refunds can only be issued against **successful** PayIn transactions. You can refund the full amount or a partial amount, but the total refunded amount cannot exceed the original transaction value.
</Note>