In SAP S/4HANA, a Business Partner (BP) is a central, unified master data object used to manage all parties a business interacts with - such as customers, vendors, and contact persons - in one single place.

In SAP S/4HANA, Customer Master Data is no longer maintained as a standalone object like in ECC. It is managed through the Business Partner (BP) concept, which unifies customer, vendor, and other master data into a single, simplified model.

The Vendor master database contains information about the vendors that supply an enterprise.