The Sales cockpit is this module's front door — open Sales Management and it is the first item. Chapter 2 describes the cockpit pattern in full (2.4); here is what this one shows.
Across the top, a findings banner watches the shape of your selling: margins falling, discounting growing unusually heavy, overdue money concentrating on too few customers. Below it, four tiles: Revenue, Gross margin % (shown only to roles allowed to see product costs — everyone else simply gets three tiles), Average order value, and Receivables open — what customers currently owe, in your company's currency (each open invoice converted at its frozen rate), with the overdue part called out beside it. Two charts follow: a revenue and margin trend, and revenue by segment, which you can slice by customer, product category, branch or sales channel. Clicking a chart filters the grid beneath it — the Sales Invoices list — so the number you questioned is one click from the documents that compose it. A freshness note tells you how current the figures are.