KNB1 - Customer is creating in more than 2 company codes.

I have a unique isuue related to CRM -> R/3.

How to restrict customer not to create in 2 company codes?

I'm creating a customer in CRM system which is replicated to R/3.

while replication, the customer is picking up company code data(KNB1) from the reference customer. Here for the reference customer in R/3 we are maintaining 2 company code (Ex.CCUS & CCCA)

My objective is to create customer for one company code depending on the sales organisation (KNVV-VKORG)

Best solution will get reward points...

Thanks in advance...

<b></b>