Login to your eCommerce package through the 123-reg Control panel.
Once logged in, click on the Marketing tab, followed by Social Web and select the Facebook option.
Once loaded, click on the Shop in Facebook tab.
Tip: Use the first link Create new Facebook page if you currently do not have one set up for your shop.
When you have a Facebook page, click on the ePages shop integration link which will lead you to Facebook so you can install the Shop app.
Once you have followed the steps to install the Shop app, you’ll need to copy the page ID. This is located here, at the end of your Facebook page URL. Then paste it here into your eCommerce package.
That’s it! The products you place on your shop homepage will now appear on your Facebook page.