PayPay for Developers FAQ

en

• When I have got a fault by "Give Cashback to User" API once, after then can I use same "merchantCashbackId" again?

• When will the error code INVALID_USER_AUTHORIZATION_ID occur?

• How I can check my balance?

• When will the payment agree page display to the user?

• Is it avaliable for user to use same PayPay MiniApp account on different devices?

• Will the UAID change if the user deleted PayPay account and re-registered again with same phone number?

• Does recon file include all the error cases?

• Can I shorten the user waiting time for payment transition?

• Are there zero suppression for pre-auth recon file order_id?

• Can I create testing for error cases?

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