Concepts of Central Person and Its Significance in Different Personnel Assignments - SAP HCM
CP (Central Person) is an object type which is linked via a relationship to object type P (Person). CP object is created in background while hiring a person (necessary config should be in place). CP is majorly required when there are multiple countries implemented in a system and an Employee needs to be re-assigned to a country other than Home country. In that case a new PERNR is generated for this employee for the new Country and this PERNR is again linked to the same CP object. Thus all the various PERNRs of Employee are liked to the same CP which uniquely identifies the Employee.