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?