Pastel Parner SDK, missing link between ACCPRD and ACCGRP

[QuickTrader]

Dear Community,

Assuming the following scenario:
1 inventory item set up in Pastel, with:
- Category field set as 000 - None
- Inventory Group as 002 - Inventory Goods

Now, when I call ACCPRD for said article, the Inventory Group information is missing. I couldn't find anywhere the value "002", just the Category "000" for said article. The reason I'm looking to retrieve the Inventory Group for it is because I want to create a Credit Note, containing that article as a GL line.
For that, I need the GL account and the only link I could find, is through the article's Inventory Group, which is not contained in the ACCPRD columns. It seems there isn't such a column in ACCPRD, so where can this information be retrieved from?

Also, the GLCode information is always empty.
I thought that it might be linked somehow to the article, so that when creating a Credit Note with a GL line, the property GLCode from ACCPRD could be used to fill in the GL account.

Any suggestions?

Best regards,

[QuickTrader]

The link between ACCPRD and ACCGRP seems to be ACCSTKST.
Key is Product Code from ACCPRD (Product Code) -> ACCSTKST (Product Code, Store Code, Group) -> ACCGRP (Group, ...)