Insight - Object Creation restrictions

[MG]

Hello all,

When I create a .csv Import, if the attribute of the object is a reference you need to insert the IQL for it. If I am not wrong this helps to avoid entering referenced data with no existing reference (if you wanted to).

When creating the object manually though, the attribute which is a reference takes the values from the referenced objecttype. I am having problems to find the right IQL to limit the values entered to only the ones existing in the referenced table. If not existing, I don't want the object to be created.

I am trying with these two ObjectTypes:

Phone:
Attribute: Model (reference to Model)
IQL: "Name"=${Model}

Model:
Attribute: Name

Thank you in advance,