How fast can Smart Tags tag all of the products in my store?
Currently, our Smart Tags app (including other apps by other Shopify partners) is limited to making 2 API calls per second.
With that limitation, we can tag your products/orders/customers at about roughly 1-2 sec per item. This also depends on whether the rules require Smart Tags to make additional API calls (for example if you are tagging customers based on metafields or order informations).
The bright side is, that all of this tagging is done automatically by our system. Imagine having to tag 10,000 products by yourself, manually. Phew.