Using Access Groups to Control Changing Prices in Sales Transactions

When you enter an Item in a sales transaction (e.g. Quotation, Order or Invoice), the Unit Price according to the valid Price List for the Customer will be brought in automatically. If the Customer has no Price List specified, or the Item is not on the Price List in question, the Base Price from the Item record will be brought in. You are then free to change this Unit Price in the sales transaction if necessary.

You can prevent a particular user or