When we import by Visual Integrator to update certain records it adding on another line instead of updating.

Needed to update price_columns on AR_PriceLevelByCustomerPriceCode, where expected it will update the 'pricelevel' by looking the combination of CustomerNo, ProductLine. But it isn't updating and creating new record with new 'pricelevel'

Is there any way to alter settings on our 'Import Job Maintenance' record?