When you’re ready to apply payment to a Sales Order or a Sales Order converted to an Invoice (Invoice-type Sales Order), you will need to change its Status from Draft to Unpaid. You will not be able to apply payment to your Sales Order until the Status is Unpaid. If your Sales Order has been converted to an Invoice, A/R transactions will be created when the Status becomes Unpaid.
Click the Ready for Payment action from your Sales Order’s Detail page. The Status will update from Draft to Unpaid, indicating it is ready for payment.
Once your Sales Order Status is Unpaid, you can apply payment using the Apply Payment action.
Click Apply Payment.
From here, the payment process will begin. Please proceed to the next step, the Shipping and Tax Page .