Why POAS matters
Revenue-based ROAS treats a thin-margin sale and a fat one as equals: campaigns look identical while one funds the business and the other decorates it. POAS re-ranks the account by what each conversion actually keeps, and fed back into bidding, margin data in the conversion values, it points the algorithm at profitable customers instead of merely expensive revenue.
Putting profit in the loop
- Build margin per SKU: landed cost, fees, and shipping per product, maintained
- Report POAS beside ROAS: watch which campaigns swap places
- Feed profit as conversion value where tooling allows: the auction optimizes what it’s shown
- Mind returns: profit isn’t real until the return window closes
Questions
POAS vs ROAS: when does the difference actually matter?
Whenever margins vary across the catalog, which is nearly always: mixed-margin stores routinely discover their “best” ROAS campaigns sell the worst-margin products. Uniform-margin catalogs can keep steering on ROAS with a margin multiplier in their heads.
What POAS target means the ads are working?
Above one covers the ad spend with gross profit; the real target adds overhead and desired profit per order, set from your own P&L. Like every efficiency ratio, it trades against volume, and the pair, POAS with spend level, is the decision, not POAS alone.