# Refund Payments

A sale is a completed payment. A captured payment is an authorized and captured payment. You can refund both sales and captured payments.

There are two types of refunds you might need to process:

1. Full refund A full refund returns the total amount of the transaction to the customer — it can only be performed once.

2. Partial refund A partial refund returns a sum less than the captured amount. A payment can be refunded multiple times, but cannot exceed the original payment amount.

POST: https://api.ompay.com/v1/merchants/YOUR_MERCHANT_ID/payment/REFERENCE_ID/refund

POST: https://api.sandbox.ompay.com/v1/merchants/YOUR_MERCHANT_ID/payment/REFERENCE_ID/refund

curl -X POST \
  https://api.ompay.com/v1/merchants/w3z8dfhkzvfq0j9n/payment/W94Q5D31NWIRD90XYUI8/refund \
  -H 'authorization: Basic ODZidWQ0Y2JremlxOXZmYzoweHI1ZDkwOHo2bmo4a2h6' \
  -H 'content-type: application/json' \
  -d '{
        "amount": "110.00",
        "invoice_number":"123456",
        "custom":{
          "field1":"this is a test"
        }
      }

var data = JSON.stringify({
  "amount": "110.00",
  "invoice_number": "123456",
  "custom": {
    "field1": "this is a test"
  }
});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function () {
  if (this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://api.ompay.com/v1/merchants/w3z8dfhkzvfq0j9n/payment/W94Q5D31NWIRD90XYUI8/refund");

xhr.setRequestHeader("authorization", "Basic ODZidWQ0Y2JremlxOXZmYzoweHI1ZDkwOHo2bmo4a2h6");
xhr.setRequestHeader("content-type", "application/json");

xhr.send(data);

{
    "id": "U1Y04VFRJ249D7XKJ6D8",
    "reference_id": "W94Q5D31NWIRD90XYUI8",
    "state": "refunded",
    "result": {
        "code": "0000",
        "description": "Approved"
    },
    "transaction": {
        "amount": {
            "currency": "USD",
            "total": "110.00"
        },
        "mode": "1",
        "invoice_number": "123455"
    },
    "create_time": "2023-09-05T09:16:38Z"
}

# Request

# Header parameters

The request require a Basic authentication in the header. For more information about HTTP request headers, see HTTP request headers.

# Request parameters