Glossary/Ad waste
What is ad waste?
Ad waste is the share of ad spend that did not return profit after fees, COGS, vouchers, and fulfillment are deducted from attributed revenue. It is what is left after a campaign is judged on true ROAS instead of platform ROAS — and on most marketplace ad accounts, it is a meaningful chunk of the budget.
01/Why it matters
The trap, in one paragraph.
Marketplace ad systems default to broad-match and aggressive keyword expansion, both of which inflate attributed revenue without inflating profit. Sellers who only watch platform ROAS keep funding the keywords and campaigns that look profitable on the dashboard but are net losses once full economics are applied.
02/In DataGlass
How Ad waste is used in DataGlass.
DataGlass calculates true ROAS per campaign, ad group, and keyword, then flags every line item where attributed revenue does not cover ad spend plus fees plus COGS. Ad waste is shown as both a percentage of total spend and an absolute Baht number, with one-click recommendations to pause, lower bids, or shift budget.
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