This module allows to set approval levels based on the pricelist for quotation/sale order. You have to set a different price for a different pricelist so after some pricelist limit that quotation needs the approval of the next salesperson. They get email notifications as well pop-up notifications about orders that waiting for approval.
For example, User A pricelist sets to 150 & User B pricelist set to 100. So User A can confirm quotation only if the price is 150 or greater than 150 if User A tries to confirm quotation of price 100 then this quotation goes to the next salesperson let's say User B and User B can confirm this quotation and then sale order is created. So when the maximum amount reduces that needs to next level approval.