Online Payment Release Notes
The following is the latest change history for the EasyPay Online Payment API.
| Date | Summary |
|---|---|
| 2026.08.20 | Removed CJH from mobile Carrier Codes |
| 2026.08.19 | Added discountRoundingUnit for Instant Discount Coupons Inquiry API |
| 2026.08.05 | Simple Payment (Addition of Rocket Pay payment method code, common code and webview information) |
| 2026.07.21 | Added overseas card information for Standalone Register Transaction (customerMail description and cardHolderName parameter added) |
| 2026.06.05 | Update the Instant Discount Coupons Inquiry API to the new version. |
| 2026.05.07 | Added cardReqType UnionPay to the response parameters for Integrated Open Payment Window. |
| 2026.04.30 | Modifed shopValueInfo Size, Sms Url value1,value2,value3 |
| 2026.04.30 | Added new response parameters to the Instant Discount Coupons Inquiry API (discount_type, max_discount_amt) |
| 2026.04.15 | Modified virtual account display for Bank Codes (Added: Jeonbuk Bank, Suhyup Bank, Gwangju Bank / Removed: Toss Bank) |
| 2026.04.03 | Removed KCT from mobile Carrier Codes |
| 2026.02.10 | Changed description of approvalNo in Cancel Payment response (Cancellation Approval Number 👉 Approval Number) |
| 2024.12.20 | Updated the UnionPay guide |
| 2024.08.08 | Updated the maximum size of the payment method approval number in the approval response (50 👉 100 Bytes) |
| 2023.03.27 | Renewal of the existing integration guide |