The retail merchandiser and the circulation department are in charge of merchandising, the specialist takes charge of importing as a buyer, and this ability has expanded. Operating within the circulation department and merchandising with purchase planning, sales promotions planning, sales planning, purchase management, stock management, these qualities summarize a specialist. Sometimes, with the corporations in the USA and Japan, there are situations where translations are necessary with the buyer. Retail merchandiser is responsible for retail products, and has a lot of decision-making powers but in order to effectively use this; they must have profound product knowledge, experience. Also, investigation, analytical faculties, and decision-making powers must be a basic foundation.

SM is a part of the employee work force within the department stores and is generally responsible for managing the stores and its sales people. Generally, the floors are divided by categories, and it can mean the management of the products. Also, SM is in charge of managing stores while checking and keeping convenient facility for customers. This is their duty.

Buyers make plans for purchasing by collecting and analyzing a wide range of information about several market conditions and the tastes of the customers. If it is necessary for a buyer to have an expert or special knowledge of the products, such as, design, texture, color and price, in order to recognize market trend. Knowing this information also enables a buyer to purchase goods that are demanding.