Void

Overview

The void method cancels an authorized payment before funds are captured. This releases the held funds back to the customer's payment method, effectively canceling the transaction.

Business Use Case: A customer cancels their order before it ships. The payment was authorized at checkout, but since you're not shipping, you void the authorization to release the hold on their funds.

Purpose

Why use void?

Scenario	Benefit
Order cancellation	Release funds when customer cancels
Fulfillment failure	Void if item is out of stock
Authorization timing out	Clean up old authorizations
Fraud prevention	Void suspicious transactions before capture

Key outcomes:

• Held funds released immediately

• No charge to customer

• Transaction terminated cleanly

Request Fields

Field	Type	Required	Description
merchant_transaction_id	string	Yes	Your unique transaction reference
connector_transaction_id	string	Yes	The connector's transaction ID from authorize
void_reason	string	No	Reason for voiding

Response Fields

Field	Type	Description
merchant_transaction_id	string	Your transaction reference (echoed back)
connector_transaction_id	string	Connector's transaction ID
status	PaymentStatus	Current status: VOIDED
voided_amount	int64	Amount voided in minor units
status_code	int	HTTP-style status code (200, 404, etc.)

Example

SDK Setup

from hyperswitch_prism import PaymentClient

payment_client = PaymentClient(
    connector='stripe',
    api_key='YOUR_API_KEY',
    environment='SANDBOX'
)

Request

request = {
    "merchant_transaction_id": "txn_order_001",
    "connector_transaction_id": "pi_3Oxxx...",
    "void_reason": "Customer cancelled order"
}

response = await payment_client.void(request)

Response

{
    "merchant_transaction_id": "txn_order_001",
    "connector_transaction_id": "pi_3Oxxx...",
    "status": "VOIDED",
    "voided_amount": 1000,
    "status_code": 200
}

Void vs Refund

Action	When to Use	Effect on Customer
Void	Before capture, during authorization hold	Funds released immediately, no charge
Refund	After capture, funds already transferred	Funds returned, may take 5-10 days

Error Handling

Error Code	Meaning	Action
404	Transaction not found	Verify connector_transaction_id
409	Already captured	Cannot void, use refund instead
410	Already voided	Already voided, idempotent result

Best Practices

• Void as soon as you know the transaction won't complete

• Void is cheaper than refund (no chargeback risk, no settlement costs)

• Authorizations typically expire in 7-10 days if not captured

Next Steps

• authorize - Create initial authorization

• capture - Complete payment instead of voiding

• refund - Return funds after capture