How to get all possible Account Assignment References of a Businesstype

Hello Community,

i'm looking for a way to get all possible Account Assignment References of a Businesstype (e.g. 51A). Is there any FunctionModule or Class to get the possible References independent of a deal? I looked for something to analyze the generated tables K9RN0XXXXX but couldn't find anything helpful.

It should be looking like this:

Import:
gsart = 51A

val_area = 'XXX'

..

..

..

Export:
table_possible_aa_ref with entries like 'REF01XXX', 'REF04XX'

The table TRACV_POSCONTEXT doesn't work for me because it's based on existing deals and can't show all possible aa_refs.

Thanks for your help!!!

Sidney

PS: the function module fvd_db_read_possible_refkont doesn't help ..