Google Ads

Every page ranking for this question prices a lead. A store does not buy leads, it buys orders against a margin. Here are the three costs, with published numbers.

Every guide explains negative match types and tells you to read the search terms report. None of them hands you the list. Here is the list, and where to put it.

Every feed guide hands you the same list of attributes. None of them tells you which of your products to fix first, or how to know afterwards whether it worked.

The order I actually work in when taking over an ecommerce Google Ads account, ranked by what tends to be costing the most money.