New Adwords interface introduces new diagnostic features and metrics.
Recover potentially lost Shopping traffic
If your Shopping campaign includes products not eligible to serve, that means disapprovals could be affecting the number of shopping results you show up on. See how many of your products are ready to serve by adding product status reporting to reporting charts in the ‘product’ and ‘product groups’ page. For example, a dip in ‘products ready to serve’ means your products are no longer eligible to participate in the auction.
New metric shows how often your Shopping ad is in the top spot
Now that your products are eligible to serve, it’s time get them in front of shoppers. The left-most ad on mobile Shopping results get up to 3X more engagement from shoppers1; impressions in this position are called “absolute top” impressions. To see the percentage of time you’re showing in this top position, use absolute top impression share (Search abs. top IS column in AdWords).
Absolute top impression share is the number of “absolute top” impressions you received in Shopping results over the total times you could’ve been in the top impression.