Array aggretor undefined problem

Hello

I can’t get any further. I have a product with an ID
The product has 4 variations. So the main ID and the first id of the 4 variations is acctually the same product

How can I set the variations as values and name it like ( Variations ID) so that I can put it into get Product at the end.
With the iterator I go through all the information but I can’t get it as a value. The aggretor says undefined.

Hope you can help me. Thanks