The purchase order and invoice process is an essential part of any business. It is the process of ordering goods and services from a supplier, and then issuing an invoice to the supplier for payment. This process is important for businesses to maintain accurate records of their purchases and ensure that they are paying the correct amount for the goods and services they are receiving. The purchase order is the document that is sent to the supplier and contains all the details of the order, including the quantity, price, and payment terms. The invoice is then sent to the supplier after the goods and services have been received, and it contains the details of the payment that is due. This process is important for businesses to ensure that they are receiving the goods and services they have ordered, and that they are paying the correct amount for them.