If the salesperson knows the movement of raw materials. We should tell them to keep the product in the customer's warehouse. In order to maintain relationships and customer retention.
If the salesperson knows the movement of raw materials prices. We should let the customer keep the items in the warehouse of the customer to maintain relationships and maintain customers.
If the salesperson knew the movement of prices of raw material we should not be told to keep the products in the warehouse of the customer to maintain the relationship and keep customers.