Is it possible to uniquely identify a user with userAuthorizationId? August 13, 2024 10:56 Yes, it is possible, because a userAuthorizationId is created for each clientId + PayPay user ID. Related articles Can I use the PayPay app in a test environment? If user's phone number has been changed, will userAuthorizationId also been changed? When is an account link required? I want to cancel my PayPay merchant agreement, what should I do? The orderDescription of Capture a payment authorization is mandatory, unlike Create a Code. How will this be displayed to the user when set here? How would it be used if it is not visible to the user?