Extractors at item level do not have AFS fields

Hello All,

could someone tell me why only the Schedule Line datasources, for sales and purchasing, have the AFS standard fields?

I´ve run the program as recommended by SAP to have the additional fields on these extractors, but only the 2lis_02_SCL and 2li_11_VASCL have these fields (among others). But the 2lis_11_vaitm and 2lis_02_itm do not have the AFS fields.

Does anyone know the reason? could someone explain me why?

thanks and regards

Mariele Specht