If an invoice is not fully paid, the final transfer amount will be less than the initial amount. This happens if the sender of the payment forgot to include the commission charged by the crypto exchange, e-wallet, or blockchain transaction network.

If your platform is connected via an API, you have the option to add an additional fee to your profile. To complete the transaction, the client will need to pay the remaining balance on the invoice. However, if the invoice has already been generated but the client has only made a partial payment, no additional fee will be charged. However, a refund of the remaining funds is possible—simply enter the cryptocurrency address number and decide whether to cover the refund costs yourself or charge the client.