Before data can be entered in SAP SD, it is important to make the Global Settings in SAP. Global Settings is used to define the country keys and currency. This is the top level master entry which is application independent. Before one can enter any business transaction in SAP, defining Global Settings is a must.

SAP Sales and Distribution module is one of the most complex modules in SAP. A user needs to understand the flow as to how information is coming and at what time same is accessed by the transaction. This information can be found by debugging SAP or running an SQL trace.