PayPay for Developers FAQ

Tell me how to handle the "OP_OUT_OF_SCOPE" error of Get payment details in SDK.

Tell me the domain of linkQRCodeURL to be obtained with Create Account Link QR Code.

What should I do when SMS authentication is requested under the development environment?

Is it possible to link multiple merchant accounts to one PayPay account?

What happens if a user's balance exceeds the PayPay money saving limit by refund?

Is it possible for merchants to control their cashback resources under the Sandbox environment?

What happens to a code after execution of Delete a Code?

Tell me how to handle an UNAUTHORIZED error under the testing environment.

Is it possible to send a push notification using the cashback API?

Is it possible to redirect to the originating calling tab after payment with Web Cashier?