User-defined field allow you to classify your contacts according to your own needs, and you can also group your contacts after your own wishes.
For a software company, for example, a possible user-defined field might be 'Licence expiry date'. The value in this case would be the date when the licence expires.
Allocating a user-defined field to a contact
 Click on the icon directly to the left of User-defined 
 field
	-or-
	
 
 Click the Search button 
 at the bottom right of the field. 
Select the Field type from the drop-down list and enter its Value in the text box below. The field type could be, for example, 'District' with the value 'north', or 'Number of employees' with the value '15'.
Click OK.
 New User-defines 
 fields are created in the Properties 
 register, which you can access by going to View 
 - Settings - Company - Properties Register. 
 You can also adjust the alternatives for the Type 
 of value drop-down list here.
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