SAP Function /SPE/BUPA_FILTER_ATTRIBUTES - Filter the really required fields

Parameter	Reference	Type	Length	Default	Optional	Text
C_BP_STRUCT	BUS_EI_COM_EXTERN	v	2736			Com. Interface of a Business Partner

Functionality
The function module is called from COM_BUPA_MWX_MAIN_INBOUND. It isregistered in table COM_BUPA_CALL_FU.
It clears most filed values in BUS_EI_COM_EXTERN, except the reallyrequired fields for the keys, addresss and addresss-GUID.