If the percentage of confirmed paid No need to send it to the customer, because it makes customers get confused as to whether or not claim despite confirmed dates.
If the invoice has already confirmed the payment. Do not send customers to another Because the customer is confused or unsettled debts spite. Is verified, then the payment date.
If the invoice of ใหนมี confirmation of payment, no need to send to customers. It made the customer confusion still not or debt though. With the confirmation of the pay.