I’m going to show you quickly how to add a SKU to your Magento Cart.

  1. Open the following file: /app/design/frontend/default/(yourTheme)/template/checkout/cart/item/default.phtml
  2. Locate your Item Array. Mine looks like this:
  3. Add an variable for the
  4. Around line 96 you should see a function similar to, but not always 100% the same:

  5. Add your SKU

Enjoy!