Sales view MM

1.Under the Sales: Sales Org2 view of the Material Master we have the following fields:

a. Material Groups 1 to 5

b. Product Attributes

c. Material Pricing Group

Q1: Can some one advise me as to what is the purpose of these fields by giving a Live example in case of Medical Products range?

Q2: Which SAP Consultant (SD or MM) is responsible for capturing information for these fields?

Please guide me.