SAP ABAP Function Module SPRX_SEARCH_PROXY (search about proxies) is using

• Class (2)
• Table/Structure Field (18)
• Message Class (1)
• Message Number (1)
• Class Method (2)
• Table (3)

#	Object Type	Object Name	Object Description	Note
1	Message Number	SPRX - 004	No proxy exists for object &1 (namespace &2)