Enabling/disabling duplicate contact checking
Users with an Administrator or Manager role can set a default option to enable or disable duplicate contact checking and select up to three default contact fields for matching. Once enabled, duplicate contact checking will notify users if a duplicate contact exists when adding a new contact, importing a contact, or merging a contact record attached to an e-mail message.
To enable/disable duplicate contact checking
From the Tools menu, click Preferences.
On the General tab, click Duplicate Checking.
The Duplicate Checking dialog box opens. For field definitions, press F1.
Select one or more contact fields for matching.
To enable duplicate checking in the database, select Enable duplicate checking in the database. To disable, clear this option.
Click OK to save the settings, and then click Apply.