An Accounts Payable (AP) Invoice is a document used in business to record a transaction between a buyer and a seller. It is a request for payment from the buyer to the seller for goods or services provided. An AP Invoice is an official document that must be completed accurately and on time in order to ensure the timely payment of the goods or services. The invoice includes details such as the date of the transaction, the quantity and type of goods or services provided, the price, and any applicable taxes. The invoice also contains the contact information of both the buyer and the seller, and the payment terms. An AP Invoice is an important part of the Accounts Payable process, as it is used to track the payment of goods and services and ensure that the buyer is paying the correct amount.