individual objects data retrieval through function modules (FM)

Hi Gurus,

I'd like to know if I can use Function Modules for the retieval of the following information:

- Reference Product of an Individual Object within the component of an iBase.

- Warranty of the Individual Object

- Purchase date of the Individual Object

(Using the FM CRM_ORDER_READ, under the path ET_SERVICE_OS-OSSET-REFOBJECT-PRODUCT_ID, I'm able to identify the iObject, but not its reference product)

Alternatively, which is the table these information are stored in?

Thanks in advance,

Andrea Ricci