Hi MLG1,
Sorry for the confusion here. If your customer has made one payment that needs to be split across several unpaid invoices, record the full payment against one of the open invoices first. If this creates an overpayment, MYOB Business will automatically create a customer credit for the extra amount. You can then go to Sales > Sales returns and credits, select the credit and choose Apply. Enter the amount you want to apply against each of the customer’s unpaid invoices, then click Record. Any remaining credit can be applied to another invoice later or refunded to the customer.
This process applies to invoices for the same customer. If the payment was entered incorrectly rather than being an overpayment, delete the payment and record it again.
For more information, see Customer overpayments.
Regards,
Sai