SAP ABAP Message Number PO - 228 (PO) is used by

• Class (2)
• Function Module (2)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Function Module	RSPO_FILTER_DEVICE	Filter Out Devices (According to Authorization and Other Criteria)	SPOO	BASIS	SAP_BASIS
2	Function Module	RSPO_OUTPUT_SPOOL_REQUEST	RSPO_OUTPUT_SPOOL_REQUEST	SPOO	BASIS	SAP_BASIS