Sales Representatives
Staff can be assigned to Customers as Sales Representatives. This is useful for reporting on customer sales on a sales rep basis for reporting commissions for example.
To assign a sales rep (Staff member) to a customer:
Go to Setup > Customers.
Click a customer to edit.
Click the Account / Payment Terms sub-heading to expand.
Select a Staff member from the Sales Representative dropdown.
Reporting
There are various reports for sales reps located under Reports > Sales.
Sales by Sales Representative
Sales by Sales Representative (Customer Ranking)
Sales by Sales Representative (Summary)