I would like to NOT have the "no alternate price on file" warning come up every time I sell an item to a customer which is not on their price list. Is this possible?

I have about 12 price lists for certain customers. Each price list has only about a dozen special item prices pertinent to that customer. So if I sell them any other items - and there are thousands of items I might sell - every single time the "no alternate price" warning comes up.

Has anyone any ideas? Thanks.

Chris