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Paid media10 min read8 July 2026AI Explorer MediaPaid media practice

Structuring campaigns by margin instead of catalogue

Most accounts mirror the product tree. Rebuilding around contribution margin is the fastest route to profitable scale.

Key takeaways

  • Catalogue-shaped accounts optimise for revenue, which is not the goal.
  • Group products into three or four margin bands and set targets per band.
  • Feed contribution margin back into the platform as the conversion value.
01

Why catalogue structure quietly loses money

When campaigns mirror categories, the algorithm maximises revenue at a blended target. It will happily buy volume in your lowest-margin lines because the return looks identical on screen. The account hits its ROAS goal and the business makes less money.

02

Building margin bands

Export the catalogue with cost of goods, shipping and payment fees. Compute contribution margin per SKU, then cluster into three or four bands. Each band gets its own campaign and its own efficiency target derived from the margin, not from a company-wide average.

  • High margin: aggressive target, fund growth here first.
  • Mid margin: efficiency target near blended break-even plus overhead.
  • Low margin: capped budget, defensive only.
  • Negative margin: excluded from the feed entirely.
03

Send margin as the conversion value

The strongest version of this sends contribution margin — not order revenue — as the purchase value. Bidding then optimises directly for profit. Start by shadowing it as a secondary conversion for four weeks before switching the bid target.

04

Keeping it accurate

Margins drift with supplier pricing and promotions. Refresh the band assignment monthly and after any significant price change, or the structure silently decays back into a catalogue.

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