# Net Sales Revenue by Period by Customer (SALES.R23)
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The SALES.R23 procedure provides a sales report by customer name in a spreadsheet like format. The report generates twelve (12) columns of monthly sales figures beginning with the month and year specified by the user. You may also select the summary option which displays only the totals for each monthly column.
Frequency of Use
Customer The customer whose sales figures are displayed in each column.
Model The customer number/id for the associated customer.
Month-Year There are twelve columns of sales figures displayed for each customer. Each column heading includes the the month and year (i.e. Jan-1990, Feb-1990 etc.).
Qty The total sales quantity for each period.
$ The total dollar value for each period for the associated customer.