How to detect a finished product in APO?

Hi gurus,

I have a doubt that I think is simple, but I do not have much knowledge about APO.

I am working in a custom program which needs to perform different actions for finished products and I don´t know how to identify them. In ECC it's so simple, cause MATKL indicates it (FERT = Finished product).

How to know in APO if a material is a finished product? I am looking for a field on master data as in ECC but I dont find anything. Perhaps the hierarchy material will be also usefull for this, but I am lookin for something simple.

Any ideas?

Thanks in advance!