Showing Discount labels for products that are linked to any discount offer? I created a view (table) of my products and I want to display the ID field of the related discount. 


So I added a relationship with Trade Discount Offer referencing products from commerce_free_products and referencing Trade Discount Trade Discount Offer from commerce_discount_offer
Then added the field Trade Discount: Discount ID I have my column but in the 0 if I add (referencing Trade Discount Trade Discount Offer from commerce_discount_offer) Trade Discount: Title for administration (Title for administration) my column is empty. 


What did I do wrong?
I found it this ticket but it does not help.
If by "ID field" you mean the name of the discount shown to customers, this is doable.

You must have a product that is the object of a "Free product" offer.

Once that is done, you'll need to add two relationships to the view. The first, you've already gotten is the link from the product to the offer: 


  Commerce Discount Offer referencing products from commerce_free_products
  Trade Discount Offer referencing products from commerce_free_products


The other relationship is the link from the offer to the Discount entity itself:


  Commerce Discount referencing Commerce Discount Offer from commerce_discount_offer
  A bridge to the Commerce Discount entity that is referencing Commerce Discount Offer via commerce_discount_offer


Then you can add fields attached to the Commerce Discount entity:


Commerce Discount: Name
Commerce Discount: Admin title


And now your labels should be visible.