Hi @sotirisa,
Thanks for reaching out. I’ve checked your site and I can confirm a successful Google Analytics snippet placement via Site Kit. I’ve also checked your site using the tagassistant.google.com service and I can see visits to your site are being tracked as expected.
When it comes to sales or eCommerce specific data Site Kit inserts a standard Google Analytics snippet on users site without enhanced eCommerce configurations. If you’re looking to add enhanced ecommerce features, or event tracking you can insert your own Google Analytics snippets if you wish, manually or via another plugin, which includes such tag or features. You can then disable the option for Site Kit to insert your snippet (Site Kit > Settings > Analytics > Edit). Using this approach you can remain using the Site Kit dashboard to view basic Analytics data, while viewing further statistics such as sales metrics from the Analytics platform or from a dedicate plugin that is used for eCommerce analytics.
There is also an open GitHub issue which you may wish to subscribe to with regards enhanced eCommerce features.
Let me know if you have any further questions with the above.