How to avoid 7 mistakes that tank retail Performance Max campaigns

Imagine this: A small business owner, relying on Google Ads to make sales on his Shopify store, has had his livelihood crushed by Performance Max in two months. Sales are practically zero, cost per conversion is up 20x ($6 to $120), yet his Optimization Score is at 100%.It’s a real and unfortunate situation that contradicts Google’s stance that their automation makes online advertising easier.
In fact, it illustrates how desperately the PPC advertising community needs better educatio