Here we would like to draw your attention to PBAU transaction code in SAP. As we know it is being used in the SAP PA-RC (Recruitment in PA) component which is coming under HR (HCM) PA module (Personnel Management). PBAU is a transaction code used for Maintain T750C in SAP.
It comes under the package for HR-PA Recruitment (PAPL). When we execute this transaction code, SAPMPAP0 is the normal standard SAP program that is being executed in background. Transaction code PBAU is included in the SAP component for SAP_HR.
Transaction PBAU technical data table