This policy details the process for the receipt of goods and services purchased with university funds through a purchase order or eProcurement process. The University at Buffalo (UB, university) ...

I would assume that the receipt is the proof of contract you entered into when buying the good from the supplier. Without the receipt you have no proof that you purchased the goods from said supplier ...

Gross receipts is an accounting term used to refer to all of the money a business takes in, before expenses and taxes are deducted. Because this term is important for accounting purposes, budgeting, ...