| 摘要 |
<p>The present invention relates to a system and method in which barter payment is made between affiliated stores or individuals using two types of point cash in connection with a payment system through a card terminal of a VAN company or an internet payment system. To this end, a method for performing a payment in a payment management processor of the present invention comprises the steps of: when a payment request is received from an external device including a payment amount, identifying a remaining sale point cash of a sale affiliated store and a remaining purchase point cash of a purchase affiliated store; setting a remaining purchase point cash of the purchase affiliated store not to be less than the payment amount by switching at least a portion of the sale point cash of the purchase affiliated store to the purchase point cash of the purchase affiliated store, when the purchase point cash among the remaining sale point cash and the remaining purchase point cash is less than the payment amount; and notifying of an approval for the payment to the external device which has requested the payment.</p> |
