In SAP MM, an organization’s master data record including information on materials it purchases, produces, or sells is called a Material Master Record (MMR). It is a primary repository for data needed in many SAP MM business operations, including production scheduling, inventory control, and buying.
The MMR includes a variety of details on a material, including its name, description, and kind. It also contains details on the material’s suppliers, stock-keeping units (SKUs), costs, and other pertinent information for the management and acquisition of the material.
Transactions MM01, MM02, or MM03 in SAP MM can be used to construct and manage the MMR.