---
title: "Zero-Amount Authorization for Card Verification"
description: "KOMOJU now verifies saved cards with a 0 JPY authorization instead of 1 JPY, following Visa and Mastercard guidelines."
date: "2026-09-14"
url: "https://docs.komoju.com/en/changelog/zero-amount-card-verification"
source_url: "https://docs.komoju.com/en/changelog/zero-amount-card-verification.md"
language: en
---

## What Changed

When KOMOJU verifies a card without charging it, the check now uses a 0 JPY authorization instead of a 1 JPY authorization. This applies, for example, when a card is saved to a customer for subscriptions.

Some issuers, such as certain debit card issuers, decline 0 JPY authorizations. For those cards, KOMOJU retries with a 9 JPY authorization and cancels it immediately.

Verifications at 0 JPY do not appear in the Merchant Dashboard. The 9 JPY fallback authorizations remain visible, in the same way 1 JPY authorizations were shown before.

## Merchant Impact

No integration or configuration changes are needed. Debit and prepaid cardholders who save a card no longer see a temporary 1 JPY deduction or a charge notification.