How do I structure asset groups in Performance Max?

Asset groups are PMax's main lever for steering the algorithm. The default mistake is mirroring your product taxonomy: one asset group per category: which dilutes signal across SKUs with wildly different margins and intent.

The better organising principle is commercial role and margin band. Scale SKUs in one asset group, Profit SKUs in another, Recovery SKUs in a third. Each group gets distinct audience signals, distinct creative, and distinct listing groups so PMax can optimise against each cleanly.

Three to six asset groups per campaign is usually the sweet spot. Fewer than three and PMax averages across too much. More than six and each group struggles to gather enough signal to optimise. Above ten and the campaign turns into noise.

Audience signals matter more than most accounts treat them. Custom audiences built from existing customer data, in-market segments aligned to the SKU role, and remarketing lists all feed PMax meaningful direction. A campaign with default audience signals is a campaign relying entirely on Google's guesses.

Creative needs to match the role. Scale asset groups carry acquisition messaging and lifestyle creative. Profit asset groups carry product-led, margin-defending messaging. Recovery asset groups carry urgency. Mixing them inside one group asks PMax to serve the wrong creative to the wrong intent.