What are the criteria for Product/Listing Groups to be considered as 'Expensive' by the 'Expensive Product/Listing Groups' audit?
The 'Expensive Product/Listing Groups' audit finds product groups from standard shopping campaigns or, listing groups from performance max campaigns under two conditions:
If the Cost Per Acquisition (CPA) of a product or listing group is 50% higher than the campaign’s CPA.
If the product or listing group has received sufficient clicks but no conversions. It estimates the number of clicks required before expecting a conversion in a particular campaign and then compares this estimate to the performance of product or listing groups.
If any of the two conditions are met, the product or listing group is considered expensive.
You can use the following instant strategies to:
Identify Expensive Listing Groups of Retail Performance Max Campaigns.
Reduce Bids for Expensive Product Groups of Standard Shopping Campaigns.