What is the difference between last click and multi-touch?
Last click gives all the credit to the final click before a purchase. Multi-touch shares the credit across every visit, so the ads that found the shopper count too.
Why does last click undercount Meta and TikTok?
These ads often bring a shopper in early. The shopper comes back later through Google or by typing your address, and last click gives that final step all the credit.
Is multi-touch always right?
No. It can only share credit across visits a tool saw. Compare its total with your store's real orders to see how much it missed.
More words like these are in the glossary, and the ROAS guide covers what your ads really return.