[TYPO3-commerce] empty checkout?

[Markus Stauffiger]

Hi commerce group

I'm starting to get my first (test) shop working. I've used this tutorial 
http://www.sk-typo3.de/Shop-aufsetzen-mit-commerce-Quickt.286.0.html 
(german)

Now I see some products, I can add them to the basket, I even see the 
correct amount (but no products?). That's ok for now.

But if i continue using "checkout" I always get "empty checkout". So I 
obviously missconfigured or missed a step. Has anybody got a tipp for me?

Thanks & best regards
Markus Stauffiger