Business Partner in SAP S/4HANA SD
One object, many roles
In S/4HANA the Business Partner (BP) is the single, leading master data object for business transactions. A customer is no longer a standalone master record maintained in FD01; it is a BP that carries a customer role. The building blocks you must know:
- BP category: Organization (companies), Person (natural persons, sole traders), Group (shared addresses, married couples).
- BP role: the business context, e.g. FLCU00 (FI Customer) and FLCU01 (Customer). One BP can hold several roles, and each role can expose different fields.
- BP grouping: links the BP to a number range and to the customer account group via Customer-Vendor Integration (CVI).
- Partner functions in SD: sold-to (SP), ship-to (SH), payer (PY), bill-to (BP), plus contact person and employee responsible, assigned per document.
What questions test
The classic trap is the number: because CVI synchronizes BP and customer data, the BP number range and the customer account group number range must be compatible, otherwise the customer role cannot be created. A second trap is multi-role: a BP holding both a customer and a vendor role is written to both customer and vendor tables, so a change in the BP affects both. A third trap is that the customer tables (KNA1, KNB1) still exist and are still updated; they are populated from the BP, so direct maintenance there is not the intended path. Always create and change data in the BP transaction or app, or run a synchronization cockpit to repair inconsistencies.
Rule of thumb
Before creating any SD customer, decide three things in order: (1) which BP role(s) are needed, (2) which BP grouping and number range apply, (3) which partner functions the sales documents will require. If the number or role assignment is wrong, no downstream SD configuration can compensate.