SAP ABAP Function Module MSR_PROCESS_PO_OPEN (Open MSR Order) is using

• Class (2)
• Data Element (3)
• Table/Structure Field (16)
• Function Module (1)
• Interface (5)
• Class Method (7)
• Table (6)

#	Object Type	Object Name	Object Description	Note
1	Class	CL_MMPUR_CONSTANTS	Constants Purchasing
2	Class	CL_MSR_TRC_FACTORY	Factory class for multistep returns