Grant points API

Merchant topup

• Execution of "merchant_topup" results in the return of the "SUSPECTED_DUPLICATE_ORDER" error. What could be causing this?

Grant Point API

• There is a difference of about 1 second between the acceptedAt obtained in the response from PayPay API and the acceptedAt returned in the recon file. Which is correct?
• How can I use Grant Points API?
• What is the best way to implement Cashback?
• Tell me the recommended flow of Cashback including abnormal case.
• What should I specify for the "wallet Type" of Give Cashback to User?
• At what timing can the execution result of cashback be checked?

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