I am working with CRM and Campaigns. I would like to know if I can make a email list segmentation based on the purchase of a product. 

Here is what I have done: 

1. Contact is created

2. Product is created

3. A Purchase Order is created and connected to Contact and Product. 

Now I am not sure how to filter a user based on purchases and get them into an email list. I see how in Campaigns you can sync with CRM but the only fields that show up are directly associated with the user record. The Purchase Order, Sales Order and Products that are related to the user record do not show up as a filter option. 

Thanks