How To Apply A Deposit or Prepayment to A Receivable

Any customer deposit or prepayment will be added as a new Receivable in POM with NO corresponding invoice.

Once your order has shipped and/or you would like to invoice the customer, you will create your invoice and then add it from Add New Item button within your Receivable.

If the Receivable amount is higher than the invoice total, the status will show as partly used.  You can add more invoices in the future that will use up the remainder of the prepayment.