There are times that we enter new customers when taking an order, and those customer have ordered before so duplicates are created.

We used a system before Netsuite called Everest by Icode where we could select the fields to check for duplicates so while entering the new customer information if the data is a duplicate, the field will light up to show that a duplicate exists.

So for example if I select the email field as a field to check for duplicates, after I enter the email address and I go to the next field, Netsuite will check to see if an email address already exists in the system and if true will display something or highlight the field or something.