Transaction#
1.
Authorization: The initial stage of a normal transaction is authorization. This phase verifies whether the customer has sufficient balance or meets risk control requirements to determine if the transaction can proceed successfully.
2.
Clear: After authorization, the transaction usually enters the clear phase, where the amount to be deducted is based on the clear amount. Some merchants may bypass authorization and proceed directly to clear, deducting the corresponding amount immediately. In such cases, there is a possibility of overdrawing, resulting in a negative card balance, though this scenario is relatively rare.
3.
Reversal: Between authorization and settlement, some transactions may trigger a reversal operation. If the reversal is full, no further settlement will occur, and the transaction is considered settled. If the reversal is partial, the remaining amount will still go through settlement.
4.
Refund: Refunds typically occur after settlement. There are two types:
Refunds applied to the original settled transaction.
Refunds processed as a new transaction, which cannot be directly linked back to the original settled order.
5.
Transaction Notification: For transactions that fail during authorization (without proceeding further), a transaction notification is typically triggered immediately.
Modified at 2025-07-28 14:12:00
