Method: DELETE_PROJECT
Method: READ_ALTERNATE_HIERARCHY
Method: READ_REGULAR_HIERARCHY
Method: IF_RPM_COMMON~IS_DELETE_POSSIBLE
Method: READ_HEADER_HIERARCHY
Method: DELETE_SINGLE
Method: GET_REVIEW_FROM_DB
Method: LOCK_ENTITY
Method: GET_EXTERNAL_ID_FOR_MESSAGE
Method: GET_PROJECTS_FOR_VAR