> ## Documentation Index > Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt > Use this file to discover all available pages before exploring further. # Zero-Conversion Spend, The Trade Desk > Zero-Conversion Spend for The Trade Desk stores. Tracked live in Vortex IQ Nerve Centre. How to read it, why it matters, and how to act on it. **Metrics type:** [Key Metrics](/nerve-centre/overview#metrics-types-explained) • **Category:** [Ad Platform](/nerve-centre/connectors#connectors-by-type) ## At a glance > Spend on TTD **campaigns** that recorded zero conversions across the entire window, **including cross-device**. Campaign-level twin of [Wasted Spend](/nerve-centre/kpi-cards/the-trade-desk/wasted-spend). With TTD's cross-device attribution included, a campaign showing zero conversions has fewer plausible "measurement issue" explanations than on peer DSPs; the diagnostic surface is cleaner. **Excludes campaigns younger than 7 days**. | | | | -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | **What it counts** | Spend (account currency) summed across campaigns where total `conversions` (incl. cross-device) = 0 AND `clicks > 0 OR impressions > 1000` AND `campaign_age >= 7 days`. | | **Cost basis** | Whatever the campaign was bidding on (CPM, CPC, dCPM, Koa CPA target). | | **Currency** | Account currency. | | **Conversion attribution** | Click-through + view-through + cross-device. | | **Attribution window** | 30/1 default; 30/7 for CTV. | | **Bot / invalid traffic** | IVT-filtered. | | **Time window** | `30D`. Campaigns under 7 days excluded. | | **Alert trigger** | `>$0 on any campaign >7D old`. Practical: any campaign with >\$1,000 spent and zero conversions across 7+ days warrants investigation. **On TTD, a true zero-conv after 7 days is a stronger signal of a real problem** than on peer DSPs because the cross-device dimension catches more conversions. | | **Roles** | owner, marketing, finance | ## Calculation Calculated automatically from your The Trade Desk data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading. ## Worked example The same enterprise homeware brand. Window 02 Apr 26 to 01 May 26. | Campaign | Channel | Age (days) | Spend (\$) | Conversions (incl. cross-device) | Status | | -------------------------------- | --------------- | ---------- | ----------- | -------------------------------- | ----------------------- | | Display Prospecting (Koa) | Display | 142 | 28,200 | 286 | OK | | CTV Premium PMP, Disney+/Hulu | CTV | 92 | 42,800 | 188 | OK | | CTV Open Exchange | CTV | 68 | 18,400 | 92 | OK | | Video Pre-roll (YouTube) | Video | 84 | 16,200 | 102 | OK | | DOOH (Lamar transit) | DOOH | 56 | 8,400 | 124 (cross-device) | OK | | Audio (Spotify) | Audio | 42 | 4,200 | 28 | OK | | Retargeting (UID 2.0) | Display + Video | 124 | 9,800 | 412 | OK | | **CTV "Outdoor Furniture" test** | **CTV** | **22** | **1,800** | **0** | **ZERO-CONV ALERT** | | **DOOH retail-environment test** | **DOOH** | **14** | **820** | **0** | **ZERO-CONV ALERT** | | New Display creative test | Display | 4 | 240 | 0 | Excluded (\<7d) | | **Total zero-conv (this card)** | | | **\$2,620** | **0** | **2.0% of total spend** | What's interesting: 1. **2.0% zero-conv is healthy band**, comparable to the wasted-spend percentage. Issue is concentrated in two test campaigns. 2. **CTV "Outdoor Furniture" test (\$1,800) at 22 days zero-conv** is a stronger signal on TTD than on peers because UID 2.0 cross-device should have caught any household-level conversion path. **Action sequence**: (1) Verify UID 2.0 implementation health on the conversion-tracking pixel; (2) Verify view-through window is 7d; (3) Audit audience targeting (the test audience may be genuinely wrong for this product); (4) Pause and restructure if all three are healthy. 3. **DOOH retail-environment test (\$820) at 14 days zero-conv** is borderline. DOOH attribution depends entirely on cross-device; if UID 2.0 match for retail-environment screens has a coverage gap, the campaign may genuinely be working but invisible. **Action**: verify UID 2.0 device-graph coverage for the specific retail-environment supply paths before pausing. 4. **The new Display creative test (4 days)** is excluded by design. 5. **Compared to MediaMath (\$2,420 / 3.4%)**: TTD's lower zero-conv % reflects both better attribution (cross-device captures more genuine conversions) and stricter pre-bid IVT (fewer truly wasted impressions in the first place). Quick sanity tests: * Single CTV campaign zero-conv = check view-through window AND UID 2.0 health. * Single DOOH campaign zero-conv = check UID 2.0 device-graph coverage for the supply path. * Multiple campaigns zero-conv = pixel/site-side issue (rare on TTD). * Zero-conv after 30+ days = real failure; pause and restructure. * Zero-conv recovers after UID 2.0 fix = attribution issue, not campaign issue. ## Sibling cards merchants should reference together | Card | Why pair it with Zero-Conversion Spend | | --------------------------------------------------------------------------------------------- | -------------------------------------- | | [TTD Wasted Spend](/nerve-centre/kpi-cards/the-trade-desk/wasted-spend) | Placement-level twin. | | [TTD Clicks vs Conversions](/nerve-centre/kpi-cards/the-trade-desk/clicks-vs-conversions) | Pixel-health canary. | | [TTD Total Spend](/nerve-centre/kpi-cards/the-trade-desk/total-spend) | Context. | | [TTD Conversions Trend](/nerve-centre/kpi-cards/the-trade-desk/conversions-trend) | Account-wide view. | | [TTD Conversion Actions](/nerve-centre/kpi-cards/the-trade-desk/conversion-actions-breakdown) | Goal/event configuration check. | | [StackAdapt Zero-Conversion Spend](/nerve-centre/kpi-cards/stackadapt/zero-conversion-spend) | Mid-market peer benchmark. | | [MediaMath Zero-Conversion Spend](/nerve-centre/kpi-cards/mediamath/zero-conversion-spend) | Migration peer. | ## Reconciling against the vendor's own dashboard **Where to look in TTD:** [TTD Platform → Reports → Performance](https://desk.thetradedesk.com/), sort by Conversions ascending. Campaigns with zero conversions and >7 days activity are the action set. **Why our number may legitimately differ from TTD UI:** | Reason | Direction | Why | | ------------------------------- | -------------------------------- | ---------------------------------------------------------- | | **Time zone** | Boundary days off | Advertiser TZ vs UTC. | | **Long-tail conversion** | Card slightly high until catchup | Cross-device conversions can appear with 3, 7 day lag. | | **View-through window changes** | Direction depends | Reflows. | | **UID 2.0 cross-device toggle** | None | Both this card and TTD UI include cross-device by default. | | **Campaign age threshold** | None | Both exclude \<7d. | **Cross-connector reconciliation:** | Card | Expected relationship | What causes legitimate divergence | | ------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------- | ---------------------------------------------------------------------------- | | [`stackadapt.sta_zero_conversion_spend`](/nerve-centre/kpi-cards/stackadapt/zero-conversion-spend) | Independent. | Different campaigns. | | [`mediamath.med_zero_conversion_spend`](/nerve-centre/kpi-cards/mediamath/zero-conversion-spend) | Independent. TTD shows fewer false positives. | Cross-device + better pixel reliability. | | [`google_analytics.ga_revenue_by_channel`](/nerve-centre/kpi-cards/google-analytics/revenue-by-channel) | Zero-conv campaigns should still show GA4 sessions. | If GA4 sessions present but no TTD attribution = TTD pixel or UID 2.0 issue. | | [`shopify.total_revenue`](/nerve-centre/kpi-cards/shopify/total-revenue) | Zero-conv on TTD doesn't mean zero Shopify revenue from TTD audiences. | Multi-touch and cross-device complicate the read. | ## Known limitations / merchant FAQs **Should I just pause every zero-conversion campaign?** No. **TTD-specific check sequence**: (1) UID 2.0 implementation health, especially for CTV and DOOH (the campaigns most reliant on cross-device); (2) view-through window setting (1d vs 7d); (3) pixel goal configuration in TTD; (4) audience targeting; (5) creative serving correctly. Pause only after all five are confirmed healthy. **TTD's better attribution means a true zero-conv after 7 days is a stronger signal than on peer DSPs**, but not so strong that the diagnostic step can be skipped. **A campaign has been zero-conv for 30 days, what now?** Pause and restructure. After 30 days with 7+ days activity and zero conversions across click + view + cross-device, the campaign has had every chance. **Why does TTD have lower zero-conv rates than peer DSPs?** Two reasons: (1) cross-device attribution catches more conversions that peer DSPs miss; (2) TTD's pre-bid IVT means fewer truly wasted impressions. Combined, expect 30, 50% lower zero-conv % on TTD vs equivalent campaigns on StackAdapt or MediaMath. **My CTV campaign shows zero-conv across click + view + cross-device, what's wrong?** This is the strongest "real problem" signal in DSP-land. Three diagnoses, in order: (1) UID 2.0 implementation gap (the cross-device match isn't running or the email-hash exchange has lapsed); (2) creative serving correctly but to wrong audience; (3) landing page broken. **Verify UID 2.0 first**, this is the hidden cause that's specific to TTD. **My DOOH campaign shows zero-conv, is DOOH not working?** DOOH attribution depends entirely on UID 2.0 device-graph match for the supply path. If a specific DOOH supplier's device-graph coverage is weak (some retail-environment screens, some transit), DOOH conversions can read zero even when delivery is healthy. **Check the supplier's UID 2.0 device-graph coverage** before assuming the channel doesn't work. **Why does this card exclude campaigns under 7 days?** Same as on every DSP. Koa's learning phase needs 50, 100 conversions to stabilise; \<7-day campaigns generate too much noise to be diagnostic. **Can I trust the figure for "today" or "this week"?** TTD's faster ingest makes "this week" more reliable than on peers, but use 30-day for action. **Why doesn't TTD auto-pause zero-conv campaigns?** Same reason peers don't: long-tail conversion lag (especially CTV cross-device) means today's zero-conv can be tomorrow's 1, 2 conversions. Auto-pause would kill genuine campaigns. Koa de-weights low-converters probabilistically; the human judgement (this card surfaces the candidates) is the corrective. **The same campaign zero-conv on TTD but converting on StackAdapt, what's happening?** Possible causes: (1) UID 2.0 implementation gap on TTD specifically; (2) the audience targeting on the TTD campaign is more restrictive (e.g. household-level vs individual); (3) different creative version on TTD; (4) different supply path (TTD may be buying from a different SSP than StackAdapt). Audit the campaign config on both platforms before drawing conclusions about platform-quality differences. **Should I migrate zero-conv campaigns from TTD to a peer DSP?** Almost never. If it's not working on TTD with cross-device attribution and strict pre-bid IVT, it's unlikely to work on StackAdapt or MediaMath where measurement is weaker. **Fix the campaign first** (audience, creative, landing page, UID 2.0), then evaluate migration. *** ### Tracked live in Vortex IQ Nerve Centre *Zero-Conversion Spend* is one of hundreds of KPI pulses Vortex IQ tracks across The Trade Desk 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](https://app.vortexiq.ai/login) or [book a demo](https://www.vortexiq.ai/contact-us) to see this metric running on your own data.