Here we would like to draw your attention to HCMWAOROOM1 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). HCMWAOROOM1 is a transaction code used for Book Room in SAP.
It comes under the package for MiniApp: General HR (Cross-Release Part) (WAO_GENERAL_FUNCTIONS_HR). When we execute this transaction code, SAPLHCMWAOROOM1 is the normal standard SAP program that is being executed in background. Transaction code HCMWAOROOM1 is included in the SAP component for SAP_HR.
Transaction HCMWAOROOM1 technical data table