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  1. PayPay
  2. OPEN PAYMENT API
  3. COMMON

COMMON

  • Tell me when deduction is conducted from users PayPay balance in the case of PreAuth & Capture.
  • Is the redirect from the payment screen of Web Payment conducted only when a payment succeeds?
  • Is it possible to change the "AUTHORIZED" status in PreAuth & Capture to "COMPLETED" without using API?
  • What happens if payment, etc. is conducted during PayPay maintenance?
  • Is the redirect from the payment screen of Web Payment conducted only when a payment succeeds?
  • Tell me how to check user authorization expiration.
  • Tell me how to handle the "OP_OUT_OF_SCOPE" error of Get payment details in SDK.
  • What is the maximum number of multiple refunds allowed?
  • The "OP_OUT_OF_SCOPE" error occurs when using the Create a QR Code API in PreAuth & Capture. How can I handle it?
  • Is it possible to pay for 0 yen?
  • Is it avaliable for user to use same PayPay MiniApp account on different devices?
  • Can I create testing for error cases?
  • Tell me how to conduct a test in a real store before going live.
  • Tell me how to handle an UNAUTHORIZED error under the test environment.
  • I have received an error response on API during development. Tell me how to handle it.
  • Is it allowed to conduct a load/performance test in the test environment?
  • Tell me how to handle API timeout.
  • Tell me how to handle when API response returns CANCELED_USER.
  • When trying to start up PayPay App from WebView app, not PayPay App but a login screen shows up on browser. Tell me how to start up PayPay App.
  • What happens if a rate limit such as TPS is exceeded?
  • What happens if you make payment multiple times with the same merchantPaymentId?
  • In what units merchantPaymentId needs to be unique?
  • Is it possible to test a payment limit?
  • Tell me how to handle the error that occurs when switching to the production environment (UNAUTHORIZED).
  • Is there any difference in a webhook to be received depending on balance block setting?
  • There are three URLs listed on the endpoint of the specification. Which one should I use?
  • What happens to the Application Program Interface(API) response when maintenance is being performed on the PayPay side?
  • What happens if the valid period of Pre-auth has passed? There will the amount blocked be refunded to the user?
  • Is the orderItems item displayed to users from the app?
  • If a timeout occurs on the PayPay side, is the cancellation process executed by PayPay? If so, what should the merchant system do?
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