Creation of Business Partners: Strategies 
Purpose
You can use different strategies for creating business partners:
Business partners which have a specific relationship to your institution are best created directly in this function. In this case, maintain both the function-independent and the function-specific data of this business partner. When you save the data, the system creates the business partner function and the general business partner.
You can first create a business partner simply as a general business partner. You store the name and address data within the general business partner data.
To represent the relationships the business partner maintains with your institution, you subsequently create one or more functions for this business partner.
If you create a further business partner function for an existing business partner, the system proposes the existing function-independent data of the business partner as default values.
You create business partners which have no particular function with regard to your institution exclusively as general business partners.
See also:
Creating General Business Partners Creating Business Partner Functions