Paytrim
Transactions

Void a partial amount

POST
/v1/orders/{order_id}/transactions/{transaction_id}/voids/amount/

Releases part of the authorized amount of a pre-authorization that hasn't been captured. You can still capture the rest.

See Void payments.

Authorization

apiKey
headerAuthorizationBasic <token>

Use your project's API key as the username and leave the password empty. Only use the API key from your server: it gives full access to your project.

Path Parameters

order_id*string

The id of the order.

Formatuuid
transaction_id*string

The id of the transaction, from the transactions of the order.

Formatuuid

Request Body

application/json
  1. body
amount*Amount

Amount in the smallest currency unit. Not more than the authorized amount.

Range0 <= value
description*string

Description of the capture or void.

Response Body

The void has been created. The response contains the void order, linked to the original order through void_of_order_id.

application/json
  1. response
id?string

Order ID.

Formatuuid
project_id?string

ID of the project the order belongs to.

Formatuuid
merchant_id?string

ID of your merchant account.

Formatuuid
merchant_order_id?string

Your own order reference. Recommended.

merchant_name?string

Your merchant name.

description?string

Description of the order. Recommended.

currency*Currency

ISO 4217 currency code, such as EUR, GBP or USD. Get supported currencies lists the currencies of your project.

Match^[A-Z]{3}$
amount*Amount

Amount in the smallest currency unit, including VAT. 1234 is € 12.34. For currencies without minor units, send the whole amount.

Range0 <= value
status?string

Status of the order. completed, cancelled, expired and error are final. With see-transactions, the transactions have different statuses: check each of them. See Order statuses.

Value in"new""processing""completed""cancelled""expired""error""see-transactions"
flags?array<string>

Labels of the order, such as is-test for orders in a test project and is-refund for refund orders.

created?Timestamp

Date and time in ISO 8601 format.

Formatdate-time
modified?Timestamp

Date and time in ISO 8601 format.

Formatdate-time
completed?Timestamp

Date and time in ISO 8601 format.

Formatdate-time
expiration_period?Duration

How long the order stays valid, such as PT1H for one hour.

payment_methods?array<>

The payment methods to show on the hosted payment page. Without it, every payment method that's active in your project is shown.

transactions?array<>

The payment attempts of the order. When you create the order, send one transaction to pick the payment method yourself. Without it, your customer picks a payment method on the hosted payment page.

order_url?string

The hosted payment page of the order. Redirect your customer here when you didn't send a transaction.

Formaturi
return_url?string

Where your customer goes after the payment. Recommended.

Formaturi
failure_url?string

Where your customer goes when the payment fails, with status cancelled, expired or error. Without it, your customer goes to the return_url.

Formaturi
webhook_url?string

Where webhooks for this order are sent. Overrides the webhook URL of your project.

Formaturi
customer?

Your customer. Card schemes use these details for 3-D Secure risk assessment, so complete details lead to more frictionless payments. Your acquirer can require some of them.

client?

The software that sends the request, such as your e-commerce platform or plugin.

extra?

Your own data to store with the order. It's returned when you retrieve the order.

refunded_amount?integer

The amount refunded on this order so far, in the smallest currency unit.

refund_of_order_id?string

For a refund order, the ID of the original order.

Formatuuid
refund_orders?array<>

IDs of the refund orders of this order.

capture_of_order_id?string

For a capture order, the ID of the original order.

Formatuuid
void_of_order_id?string

For a void order, the ID of the original order.

Formatuuid
chargeback_of_order_id?string

For a chargeback order, the ID of the original order.

Formatuuid
chargeback_orders?array<>

IDs of the chargeback orders of this order.

reversal_of_order_id?string

For a reversal order, the ID of the original order.

Formatuuid
reversal_orders?array<>

IDs of the reversal orders of this order.

related_order_id?string

ID of the original order, for any order created from another one.

Formatuuid
related_orders?array<>

IDs of the orders created from this order.

related_payment_link_id?string

ID of the payment link the order was created from.

Formatuuid
curl -X POST 'https://api.pay.paytrim.com/v1/orders/8078d78f-8700-4cfe-94b1-4a777d3400f2/transactions/a5dac3de-d304-4570-922b-373d478b8b3a/voids/amount/' \  -H 'Content-Type: application/json' \  -d '{  "amount": 2500,  "description": "Void 25.00 of the full 100.00"}'
{  "id": "52100d94-2529-4076-8e70-d43ecce99c74",  "project_id": "05ad138f-52fa-40dc-9751-5fde949dcb57",  "merchant_id": "b251b220-5d8b-4b9d-9915-b89676dc0948",  "merchant_order_id": "EXAMPLE001",  "void_of_order_id": "20b3cc29-d9b9-4519-890f-0b90b3205669",  "created": "2026-10-12T14:50:20.663030+00:00",  "completed": "2026-10-12T14:50:21.686226+00:00",  "currency": "EUR",  "amount": 2500,  "description": "Void 25.00 of the full 100.00",  "status": "completed",  "transactions": [    {      "id": "ae4ef9d0-90fe-4595-8fda-412cf2e04133",      "order_id": "52100d94-2529-4076-8e70-d43ecce99c74",      "void_of_transaction_id": "de78c510-6ba1-44f6-a08e-356c3558d7e6",      "amount": 2500,      "currency": "EUR",      "credit_debit": "credit",      "payment_method": "credit-card",      "payment_method_brand": "mastercard",      "is_capturable": false,      "outcomes": {        "processing": {          "status": "accepted",          "response_code": "00",          "response_code_description": "Approved"        }      },      "status": "completed"    }  ]}