Do not store data in view if entry already exists?

Do not store data in view if entry already exists?

I have data entered by 5 different people, if 2 users have the same customer the same day, each one of them is gonna create a record A and a record B for the same customer.

In my customer database view, I'll get:
Company x:
-record A
-record B
and so on

When record A and record B are the exact same...
(Same cust name, same email, same telephone)