According to The Accounting Coach, "the accounts payable process or function is immensely important since it involves nearly all of a company's payments outside of payroll. The accounts payable process might be carried out by an accounts payable department in a large corporation, by a small staff in a medium-sized company, or by a bookkeeper or perhaps the owner in a small business.
Regardless of the company's size, the mission of accounts payable is to pay only the company's bills and invoices that are legitimate and accurate. This means that before a vendor's invoice is entered into the accounting records and scheduled for payment, the invoice must reflect:
- what the company had ordered
- what the company has received
- the proper unit costs, calculations, totals, terms, etc."