Customers Rarely Buy After a Single Ad
Most purchase decisions don't happen after one ad impression. A shopper sees a social ad, searches for the product, checks reviews, runs into a retargeting ad, and only then hits "buy." This chain of touchpoints leading to a purchase is called a conversion path, and the number of touchpoints it contains is the path length. Running ads without knowing your path length makes it hard to decide how much budget to put where.
This tool divides total touchpoints (impressions plus clicks) by total conversions to get your average path length. A path shorter than 3 means purchases happen relatively fast, so the appeal of that first touchpoint matters most. A path of 3-6 is typical. Above 6 usually points to a higher-priced product or a category where buyers deliberate more carefully.
If your path length comes back long, don't expect one ad to close the sale — build a funnel with distinct messaging for awareness, consideration, and purchase stages. In particular, keeping enough retargeting budget to stay in front of interested shoppers without losing them is the key lever for improving conversion once path length is long.
Frequently Asked Questions
It's the average number of touchpoints a customer has with your ads or content before they convert.
Increase your retargeting budget and rebuild your content funnel with distinct messaging at each stage from first touch to purchase.
Check total impressions and clicks in Google Analytics or your ad platform's assisted conversions report.