Re: Changing data in AFPO via User exit in CO01

Try this:

FIELD-SYMBOLS : <FS_AFPO> .

CONSTANTS: lc_AFpo(19) TYPE c value '(SAPLCOB1)AFPO_BT[]'.

ASSIGN (lc_AFPO) TO <FS_AFPO>.

CHECK sy-subrc EQ 0.

CLEAR: <FS_AFPO>.

unassign <FS_AFPO>.

This code may help,good luck~