What difference between point of sale and point of purchase?

What difference between the point of sale and point of purchase?

The point of purchase refers to the area where goods are promoted in a retail store while the point of sale refers to the area where the actual transaction takes place. So the point of purchase could be defined also as strategic area for the placement of goods in a store while point of sale is the checkout area where the goods are payed. 

Generally these concepts are related with the same thing- a place where the transaction between a merchant and a customer, in a retail store, is made. However there exists a contextual difference in using these terms. Therefore from the viewpoint of customer the area where transaction is made is named "point of sale" while from merchant point of view this area would be named "point of purchase".

POP, or point of purchase, refers to the physical location or place  where consumers decide whether or not to buy a product. On the other hand, POS or point of sale, refers to the specific area where the exchange of goods takes place or where the payment takes place. For example, the point of purchase for a loaf of bread is a grocery store, while the point of sale is the check-out aisle at the cash register.