SAP ABAP Message Number PO - 550 (PO) is used by

• Function Module (3)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	RSPO_CANCEL_JOB	Delete Spool Job	SPOO	BASIS	SAP_BASIS
2	Function Module	RSPO_POPUP_JOB_INFO	Short Description of Print Request Status	SPOO	BASIS	SAP_BASIS
3	Function Module	RSPO_QUERY_JOB	Statusabfrage eines Spool-Jobs	SPOO	BASIS	SAP_BASIS