To add your whole store to Facebook, go to
and install our Facebook App.
You will have to select the page on which you want to install your store.
You can also get there via the Integrate button -> Facebook store.
Now your store will show up in a Tab in your Facebook account.
It is also a good idea to add a link to your description which appears below your Facebook banner to your Santu Store outside of Facebook, so those using mobile devices can also find your store.
To add individual products to Facebook to your time line simply click on their "Share" Link and then click on the Facebook button.