In SAP S/4 HANA, Business Partner is the leading object and single-entry point to maintain Business Partner, Customer, and Supplier (formerly known as Vendor) master data. This is to ensure ease of maintenance of the above master data and to achieve harmonization between them. Compared to classical ERP transactions, maintenance of Customer and Supplier master data via Business Partner has multiple advantages. Some of them are as follows:In classical transactions, one customer can only be associated with one account group. But in Business Partner, multiple roles can be associated with the same Business Partner.Maximal data sharing and reuse of data which lead to easier data consolidation.General Data available for all different Business Partner roles, specific data is stored for each role.Maintenance of multiple relationships to the same Business Partner.Maintenance of Time Dependency at different sub-entities roles, address, relationship, bank data, etc.This essay gives an overview of the introduction of the SAP Business Partner concept. When implementing MDG and S / 4HANA, the implementation of SAP Business Partner is a "MUST".Organization (firm, branch office), person or a group of persons or organizations in which your company has a business interest. You can create and manage your business partners centrally for different business transactions. This is of prime interest if a business partner plays different roles for a company, such as sold-to party and ship-to party.You can create a business partner in different business partner roles. During the course of the business relationship, the business partner can assume other business partner roles. You do not need to create the general data, which is independent of a business partner's function or of application-specific extensions, again in each case for this business partner. This prevents data being created and stored redundantly.