I have users related to different products on my accounts.

For example

User: John Doe, Product: Cattle

User: Don Johnson, Product: Goats

As a Account Owner, I want to be able to list all my accounts, that do not have a certain Product ie. Cattle. The Account systemview will show results based on the systemview itself, but not based upon the subgrid (inner join). The results will therefore be incorrect.

Filtering down the sub grid or inner join is not available and can only be achieved by customization.