# Summary Sales by Customer (SALES.R6)
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The SALES.R6 procedure provides a summary listing of shipments by customer for the period specified. You may limit the items included in the listing to specific customers.
Frequency of Use
Cust# The number assigned to the customer.
Name The name of the customer.
Ship Qty The total quantity from all shipments for the customer.
Revenue The total dollar amount from all shipments for the customer.
Cost The total dollar cost from all shipments for the customer.
Gross Margin The difference between the revenue and cost.