What are Reddit Max campaigns?

You choose the objective, the targeting and the creative. Reddit's help centre lists traffic, app promotion, sales and leads as supported objectives, with image and video only¹. You give it at least one audience hint, at least three headlines and at least one image or video¹. After that the system takes over the moving parts: it allocates budget and bids to minimise cost per action, and predicts the best headline, media and call to action combination for each impression¹.

You can see what went in. You can see the totals that come out. What happened in between is the system's call.

Automated campaigns learn from the events you report. For a sales objective, that means purchases. If your Reddit Pixel or your tracking setup misses some or double counts others, the system optimises toward a distorted picture.

There is a second risk. A system built to minimise cost per action¹ can find people who were going to buy anyway. That looks efficient in the panel and adds little. Whether Max reached new customers is a measurement question, not a setting.

It is the Reddit counterpart of Google's Performance Max and Meta's Advantage+ sales campaigns. Targeting inputs such as Reddit community targeting still matter. For how this fits a wider channel plan, see paid media strategy for ecommerce. Objectives, formats and targeting are covered in Reddit Ads Manager for ecommerce.

For ZFD: We would test Max against a setup you control, and judge both on margin.