What ROAS means, and why COD changes it
ROAS, return on ad spend, is revenue from ads divided by what the ads cost. Meta calculates purchase ROAS as purchase value divided by amount spent. A ROAS of 4 means every 1 you spent brought 4 in sales.
With cash on delivery, a booked order is a promise, not a payment. Some customers refuse the parcel, change their mind, or are not home. You pay the courier both ways and the sale disappears. That is why a campaign that looks healthy in the ads manager can lose money at the bank.
How the calculator works
- Booked revenue is orders times the average order value; ROAS on booked orders divides it by ad spend.
- Delivered orders are the orders minus the share returned or refused. Real ROAS uses only their value.
- Product cost is counted only for delivered orders, because returned goods come back to stock.
- Every order pays outbound delivery, and every returned parcel also pays the trip back.
- Break-even ROAS is the real ROAS at which profit after ads is zero.
Reading your result
If real ROAS is above break-even, the ads are making money after product and delivery costs; the gap between the two is your margin of safety. If it is below, the same spend needs more accepted parcels.
Often the quickest win is not a better ad but fewer returns. A return rate falling from 25% to 15% can turn a losing campaign into a profitable one without changing the ads at all.
How to raise real ROAS
- Confirm every COD order on WhatsApp before you ship; see COD order confirmation on WhatsApp.
- Send tracking so customers expect the parcel; see courier tracking updates.
- Answer DMs and comments fast; buyers who wait for an answer change their mind before delivery.
- Move budget to creatives that bring real orders, not cheap clicks; see the Meta ads audit checklist.
Sources
- Meta Business Help Centre: Purchase ROAS (return on ad spend) (checked 2026-10-15)
See real ROAS for every campaign
Karobar puts your Meta, TikTok and Snapchat ads next to the orders your chats turned into, and its Social selling funnel report follows them to delivered sales. See Ad Insights.