Organization Units and their assignment

• The highest-level organizational unit in SD module is Sales Organization.
• A sales area is a combination of a sales organization, DC and division.
• A sales organization is uniquely assigned to a company code.
• DC is assigned to a sales organization. The assignment is not unique.
• A division is assigned to a sales organization. The assignment is not unique.
• A plant is assigned to a combination of sales organization and distribution channel.
• A plant is assigned to a company code.
• A material can have only one division.
• By defining and assigning Sales Org, DC and Div a sales area is not automatically formed. You have to set up a sales area.
• A sales office is assigned to a sales area.
• A sales group is assigned to a sales office.

SAP System Landscape

SAP System Landscape

System landscape basically is the set-up or arrangement of SAP servers

System landscape consists of the 

1.     Development Server

2.     Quality Assurance Server

3.      Production Server-PROD

R/3 stands for real time three tier architecture

1.     Presentation Server -SAP GUI.-Presentation Layer-This layer is the interface between the SAP System and its users,The presentation layer sends the user’s input to the application server, and receives data for display from It.

2.     Application Layer-Where SAP is Installed-The software components of the application layer consist of one or more ABAP application servers and a message server

3.     Database Layer-Where Database is installed.The database layer consists of a central database system which in turn is made up of the database management system (DBMS)

Process Flow SD

Process Flow SD