The information about the customer's sector is recorded in the fields of this tab of which the functions are described below: 
Code and Description: The field used to enter the sector code and description of the customer.
The Sectors/Industries window is displayed by clicking on "..." icon, and the appropriate definition is selected. If the sector of the customer is not defined, the sector can be defined by clicking on "New" button.
Main: If the customer operates in more than one sector, the main sector is specified on this field.
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Number of Employees: The number of the employees of the customer is specified on this field.
The information about each sector is recorded on a separate line.