How to Run a Summary of Total Purchases by Vendor How to Run a Summary of Total Purchases by Vendor Document Overview - Report shows total amount paid to a vendor over a period of 3 years NOTE: This report does not allow a search by project or show details. This report provides a summary of total purchases. Sample Report Below. Accounts Payable Voucher Vendor Purchases Enter vendor number in the “From Vendor” field, or double click to search Enter the same number in the “To Vendor” field Click Run Report