Query sales order data into sku properties

I am currently working with a dataset that has all sales order information and have the goal of creating a boolean formula to mark true if a sale on a product has occurred in the last two years.


The data module and sku modules are related based on a column with item ID numbers, but I am having trouble pulling the sales date from the data to the sku module. 


I have attempted to select the date column and have tried using the x[LOOKUP: y] formula, but am getting errors relating to "module doesn't have a built in top level".


How have you brought in sales dates into a sku module?


Thank you!