Average Order Value (AOV)
AOV is gross sales divided by orders — the average revenue per order. On Amazon, AOV rises through virtual bundles, multi-packs, parent-child variations that include larger sizes, and frequently-bought-together placements.
Average Order Value (AOV) is gross sales divided by the number of distinct orders in a period.
AOV = Gross Sales / Number of Orders
A SKU with €25 ASP can have a €25 AOV (every order is one unit) or a €38 AOV (a meaningful fraction of orders are multi-unit). The gap between ASP and AOV is pure operating leverage — same advertising click, more revenue per conversion.
Why AOV matters for PPC
Three downstream effects of higher AOV at the same CVR:
- Effective ROAS rises. Same ad spend, larger transaction size.
- TACOS falls — even at constant ad spend and constant orders.
- Fulfilment cost per euro of revenue drops — fixed pick-pack overhead spread across more units.
A 20% lift in AOV at constant orders is roughly equivalent to a 20% bid headroom — you can pay 20% more per click and hold ACOS constant.
Levers that raise AOV
- Virtual bundles. Combine two existing ASINs into a new bundle ASIN. Zero inventory cost; pure AOV lift.
- Multi-pack variations. Add a 3-pack or 6-pack as a child of the parent-child family with a per-unit price discount.
- Frequently Bought Together placement. Driven partly by purchase co-occurrence; runs in the background once enough data exists.
- Subscribe & Save. Buyers on S&S often add multiple units per order to qualify for the larger discount tier.
- Coupon thresholds. "€5 off when you spend €30" pushes single-unit buyers into two-unit orders.
AOV vs. ASP
A precise distinction worth keeping:
- ASP is per unit.
- AOV is per order.
- AOV = ASP × average units per order.
In a single-SKU, single-unit catalogue, AOV equals ASP. In a real catalogue with bundles, multi-packs, and cross-SKU cart-adds, AOV is usually 1.2–1.8× ASP. The ratio is itself a useful health metric — when it stagnates, AOV optimisation has slack.
Common mistakes
- Reporting ASP and calling it AOV. They differ by the units-per-order multiplier.
- Optimising AOV without watching CVR. A coupon threshold that lifts AOV 15% but cuts CVR 20% is a net loss.
- Ignoring AOV during peak. Prime Day and BFCM are the highest-AOV days of the year; the bundle and multi-pack levers compound at exactly the moment they matter most.