Different between STATUSPS of 0FI_AP_4 and BKPF-BSTAT

Hi every one,

the Field STATUSPS of 0FI_AP_4 is based on  BKPF-BSTAT and BSEG-AUGDT.

But the value of these Fields are different:

STATUSPS of 0FI_AP_4 has value:

"o- open"

"c-closed"

and BSEG-AUGDT has the values:

     Normal document

A     Clearing document

B     Reset clearing document

D     Recurring entry document

M     Sample document

S     Noted items

V     Parked document

W     Parked document with change of document ID

Z     Parked document which was deleted

why there is the Difference?. Because my Department want to know which item are noted, clearing item...?

Do i need to enhance the datasource 0FI_AP_4 with the field BKPF-BSTAT ?

Thanks