Here we would like to draw your attention to OOBS transaction code in SAP. As we know it is being used in the SAP PA-OS (Organizational Structure in PA) component which is coming under HR (HCM) PA module (Personnel Management). OOBS is a transaction code used for Staffing Schedule in SAP.
It comes under the package for Organization and planning (application) (PP00). When we execute this transaction code, RHCUST01 is the normal standard SAP program that is being executed in background. Transaction code OOBS is included in the SAP component for SAP_HR.
Transaction OOBS technical data table