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PMAX experiment: does Google literally just send hundreds of visitors and see what sticks 🫣
Posted by on December 20, 2025 at 9:51 pmBranching off a PMAX experiment after a semi successful shopping campaign. Visitors are literally through the roof. Conversions not so much. I’m not overly fussed as at the end of the day it’s an experiment but I will look at my shopify dashboard and there’s like 200 visitors there and zero active carts 🙈
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1 Reply
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Yeah… kind of 😅 — PMax sends a lot of traffic early to figure out which audiences, placements, and products *might* convert. That learning phase often looks like tons of visitors with zero carts, especially coming from Shopping. The key is capping budget, giving it a short learning window, and killing it fast if there’s still no signal after 10–14 days.
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Expectations: Hundreds of visitors, traffic is through the roof.
Reality: 200 visitors.
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In my experience it’ll go heavy on adding TOF traffic from display, discovery, video… I mean this is the extra traffic P-Max can provide. It may not convert but can help the bottom of funnel stuff to convert at a higher rate and generate a better ROAS in the long run. But product specific.
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Lolz couldn’t put it in a better way. Honestly that’s pretty much it with Pmax first week or so.
As it gets more data and optimize on the data in ad account, it stabilizes given you have enough data in there.
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Technically yes it keep sending display and youtube video traffic. You need to check channel report for confirmation. In order to get quality traffic you need to create standard shopping campaign in parallel to send some signals to pmax
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