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Metrics type: Key Metrics • Category: Ad Platform

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At a glance

Total advertising cost across all Sponsored Products, Sponsored Brands, Sponsored Display, and DSP campaigns over the window. SUM(cost) in account currency. The denominator under ROAS, the numerator under ACOS, and the budget figure your CFO checks first. Watch for unexpected spend spikes (>2σ above the 30D baseline) which usually mean auto-campaign drift or competitor cost-per-click pressure.

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Calculation

Calculated automatically from your Amazon Ads data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading.

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Worked example

A US home-goods seller, same account as the ROAS / ACOS examples. The 30-day window covers 14 Mar 26 to 12 Apr 26. What’s interesting:
  1. A 5.5% rise in spend is well within the 2σ window (which on a 25,400baselinewithtypical1225,400 baseline with typical 12% daily volatility would be a ~5,000 spike). No alert fires; the rise is within normal scaling. Pair with ROAS to confirm: ROAS dropped 8.5% over the same period, so spend up + ROAS down = scaling slightly past the efficient frontier. Watch.
  2. SP at 76% of spend is normal for a Sponsored-only seller. SB and SD share remained roughly stable. If SD spend were rising disproportionately, it would suggest the merchant is leaning into remarketing without being asked to.
  3. No DSP commitment yet. DSP requires minimum spend commitments ($35K+ for managed-service, less for self-service). For sellers below that threshold, DSP shows zero, which is correct.
  4. The 14% rise in SB and SD with only 3% in SP could mean Amazon’s auto-budgeting shifted spend toward the better-converting campaigns last cycle, or that the merchant manually raised SB and SD budgets after a good week. Both are normal; investigate only if ROAS by Campaign shows the rise concentrated in a single drifting campaign.
  5. What a 2σ spike would look like: A sudden jump to $34,000 in 30D (~33% above baseline). Common causes: a single auto-campaign exploded due to broad-match leakage (open Search Terms immediately); a competitor entered the auction with aggressive bids (CPC Spike Detection); or a budget cap was raised without team awareness.
Quick sanity tests:
  • Spend up + ROAS up = healthy scaling. Best case.
  • Spend up + ROAS flat = clean scaling without efficiency loss. Good.
  • Spend up + ROAS down = scaling beyond efficient frontier. Common; watch.
  • Spend down + ROAS up = pruned low-quality. Good if intentional.
  • Spend up sharply (2σ+) with ROAS flat = budget caps or competitor pressure, not deliberate scaling. Investigate.
  • Spend flat + ROAS down = attribution change or external factor. Don’t react before checking ACOS / ROAS reconciliation.

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Sibling cards merchants should reference together

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Reconciling against the vendor’s own dashboard

Where to look in Amazon Ads Console: Amazon Ads Console > Campaign Manager, sort all campaigns by Cost descending. The total at the foot of the table should match this card to within ~1%. Amazon Ads Console > Reports, choose a 30-day window and the same date range. The Spend column total reconciles directly. Amazon Ads Console > Billing, the invoice view. This is the authoritative source for finance-team reconciliation; this card pulls report-level cost which matches invoiced cost to within ~0.5% (the small drift is invalid-click refunds processed later). Why our number may legitimately differ from Amazon’s invoice: Cross-connector reconciliation:

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Known limitations / merchant FAQs

Why doesn’t my Amazon Ads invoice match this card exactly? Three reasons. (1) Invalid-click refunds. Amazon credits invalid clicks 7-14 days after the click; this card shows the gross figure, the invoice is net. Expect 0.5-2% drift, settling within ~14 days. (2) DSP committed minimums are billed even on under-delivery; this card shows delivered cost. (3) Co-op offsets for Vendor Central accounts. The card is gross; the invoice is net of co-op funding. My spend spiked but ROAS didn’t change, what happened? Three plausible diagnoses. (1) Auto-campaign drift, broad-match keywords are matching new traffic that converts at the same rate as your existing audience (rare but possible). (2) Competitor entered the auction, CPC rose, you bought fewer impressions per dollar but the conversion rate held. Check CPC Trend. (3) Budget cap raised, the team raised a cap and Amazon redistributed unspent budget into newly-uncapped campaigns. Audit recent budget changes. My spend dropped sharply, am I missing impressions? Likely. Check Impression Share, if impression share fell, your bids are no longer competitive (a competitor entered or you cut bids). Spend dropping while ROAS rises is the “pruning” pattern; spend dropping while ROAS flat is competitive squeeze. Why doesn’t this card include refunds? Total Spend is gross media cost, not net of refunds. The card answers “how much did I commit to Amazon Ads?”, refunds happen later. For net-of-refund spend, use the Amazon Ads Billing view directly. Multi-marketplace, can I see total global ad spend? Not in a single card. Each marketplace is a separate Amazon Advertising account with its own currency. Vortex IQ shows one card per account. For a global view, sum manually in your CFO spreadsheet (with FX conversion to a reporting currency). Can I trust today’s spend? Mostly. Spend is recorded at click time, so today’s number is fairly stable within the 1-3h report-generation lag. Unlike ROAS / ACOS (which keep settling for 14 days), spend is essentially final by end-of-day PT. Why do my Sponsored Brands and Display spend percentages look small? Most Amazon sellers have SP at 70-85% of spend, SB 10-20%, SD 5-10%. SP is the highest-converting placement; SB and SD are awareness / mid-funnel. A SB or SD share above 25% suggests over-investment in upper-funnel, usually only justified during product launches or major brand-building pushes. Should I include DSP in this card or break it out? Both. The hero card sums all four; the DSP vs Sponsored Spend Mix shows the split. DSP and Sponsored have different attribution windows and audiences, so they’re worth understanding separately, but the CFO wants a single total. My monthly spend is volatile, is that normal? Yes for most categories. Amazon Ads spend correlates with shopper traffic, which is highly seasonal: Prime Day weeks 2-3× normal; Black Friday / Cyber Monday 3-5× normal; Q1 typically 30-50% below Q4. The 30-day rolling smooths this; week-over-week comparison only makes sense within a comparable demand period.

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Tracked live in Vortex IQ Nerve Centre

Total Spend is one of hundreds of KPI pulses Vortex IQ tracks across Amazon Ads and 70+ other ecommerce connectors. Nerve Centre runs the detection layer; Vortex Mind investigates the cause when something moves; Ask Viq lets you interrogate any number in plain English. Start for free or book a demo to see this metric running on your own data.