For the feed, we advise you to send us one of your current feeds (leguide, shopping, etc) or if you do have any feed you can install one of the numerous modules proposed by the community osComerce.
We recommend you this one.

Sales tracker
Today we do not have a module allowing you to install the sales tracker, so it is necessary to install it manually respecting the documentation here.
If you did not know how to do it, you can contact a technician/webmaster.

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