How create Entry Attach Cfolders in RFX

Hello,

I'm writing about a problem create a attachment

I would like create attach a cfolders in RFX object.

1) I create cfolders, work area, folders. <- successful

2) I build a table it_attach for object RFX <- successful

3) Create a entry in RFX object. <- There is problem, didn't change object RFX

I use next code

CALL FUNCTION 'BBP_PROCDOC_UPDATE'
EXPORTING
i_park                              = 'X'
i_header                            = lv_header
it_attach                           = lo_cl_cfolders->mt_attach
iv_with_change_approval             = 'X'
IMPORTING
es_header                           =  ls_header_new

TABLES
e_messages                          = e_messages
.

lo_cl_cfolders->mv_object_type = 'BUS2200'.

CALL FUNCTION 'BBP_PROCDOC_SAVE'
EXPORTING
iv_header_guid = lv_header-guid
iv_object_type = lo_cl_cfolders->mv_object_type
.     " iv_usertype    = lv_usertype.

CALL FUNCTION 'BBP_PROCDOC_RESET_BUFFER'
* EXPORTING
*   I_NO_STATUS       = ' '
*   I_NO_WFL          = C_ON
.

COMMIT WORK AND WAIT.

It a problem, after execute RFX object didn't change. RFx object didn't have a attachment cfolders.

Please tell me how I can change a RFx object.