Change Drupal Commerce line item titles I'm building a webshop with a lot of promotions in. And some articles in the shopping cart, have a linked promotion. And I want to show this promotion in the shopping cart summary (before the order completion). 

Is there a way to change the title of the product in the shopping cart summary?

It's a shop without any visible prices. The total amount of the order is calculated on the servers... (it's a complicated proces). So there is nothing to worry about that...

But how can I display the pink text in a proper way? Would it be best to get this data from the database and place it as a field in a table (since the shopping cart summary is a view)? Or what other options do I have?
Please note that items in the cart are not products, but line_items (referenced to the product of course)

I think this hook can fit your needs, but I haven't tested it (in my situation, I added the line item directly using custom functions in my module)