In the Google Analytics ecommerce tracing script you must provide for every item and SKU code. I have this code for every product I'm selling and up until now I have always provided it in the _addItem method.

But when reviewing that data in the ecommerce module of Google Analytics, I have no real, no readable data about my SKU sales. I know what product has been sold, due to the product name I provide. But when clicking through to the SKU-level, I know nothing more, since all I can see there are SKU codes.

Is it possible and wise to replace the SKU code with the following template?

"product-name colour-name size-name"

This way, it should still be a unique field, but more readable afterwards.