Google Merchant Center announced that auto-tagging is now available for free listings on Google Shopping. "Auto-tagging for free listings is now available in your Merchant Center account," the search company wrote.
When auto-tagging is enabled, after someone clicks your free product listing and free local product listing, auto-tagging adds some additional information including a parameter called "result id" to the URL parameters that searchers click on.
The parameter can be parsed by your analytics tool, like Google Analytics, to track these result IDs and give you more insight into your Merchant Center listings. Google said "this will allow you to see how effectively your free listings and free local listings lead to valuable customer activity, such as purchases."
To enable auto-tagging in your Merchant Center account, go to the "Conversion settings" in your Merchant Center account.
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