SAP ABAP Function Module RSPO_QUERY_DEVICE (Query Queue of R/3 Device) is using

• Data Element (1)
• Table/Structure Field (9)
• Function Module (1)
• Message Class (1)
• Message Number (1)
• Table (4)

#	Object Type	Object Name	Object Description	Note
1	Message Number	PO - 022	Unknown error occurred, no message available (RC = &1)