1.Business Partners
*While partner types allow us to distinguish between different business partners, partner functions represent the roles played by business partners within the business transaction.

*The account group controls the amount of data and the response of customer master records.
*In contrast to the account group, which controls a customer master record,the partner function determines which partner assumes specific business functions within the sales process.

*When you define the account group, you determine:
.Whether each data field is displayed and whether maintenance is mandatory, optional, or not possible
.Thenumbe range
.A number of other control elements, such as for partners and texts of the customer master

2.Partner Determination
*The partner procedures are assigned to the partner objects as follows:
.Partner object => Assignment key
.Customer master => Account group
.Sales document header => Sales doc. type
.Salesdocument item => Item category in sales
.Delivery => Delivery type
.Shipment => Shipment type
.Billing header => Billing type
.Billing item => Billing type
.Sales activities (CAS) => Sales activity type

Exercise
1.Display the customer master and determine the account group.
Logistics → Sales and Distribution → Master Data → Business partners → Customer → Change → Sales and Distribution.
Select Extras→ Administrative Data.

1.Create a new partner determination procedure for object customer master.
2.Select Partner Determination Procedure assignment.

1.Create a new partner determination procedure for object sales document header using
2.Select Partner Determination Procedure assignment.