You can control the prices displayed on your B2B store for each of your customers by specifying a default price list in their Relationship settings. The prices set in the assigned default price list for the Relationship is what will be displayed when the customer logs in to the B2B store. For example, if the Customer (aka Relationship) accessing the B2B store has the Wholesale price list set as their default, they will only see prices in the Wholesale price list.