Will the userAuthorizationId change if the user deleted PayPay account and re-registered again with same phone number? August 14, 2024 10:12 Yes, the userAuthorizationId will change. アカウントリンク / AccountLink Related articles If user's phone number has been changed, will userAuthorizationId also been changed? What is the behavior like when a request is conducted with an expired userAuthorizationId? Can I delete my PayPay for Developers account? Is there any difference in a webhook to be received depending on balance block setting? Please provide the IP address of Webhook notification source server.