Metrics

Count of unique subscribers who opt out of marketing email in the period, as recorded by the ESP. Spam complaints and hard bounces are excluded; it is the numerator of unsubscribe rate.

Wishlist Additions counts the confirmed add_to_wishlist events recorded when a shopper saves a product to a wishlist, favourites or save-for-later list, reported at event grain and at item grain from the items[] array. It is the numerator of Add-to-List Rate and a leading indicator of deferred purchase intent, showing which products attract consideration but have not yet been carted.

The number of submitted product searches that show no matching products to the shopper during the reporting period.