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Metrics type: Key Metrics • Category: Ad Platform

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At a glance

Spend on TTD campaigns that recorded zero conversions across the entire window, including cross-device. Campaign-level twin of 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.

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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.

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Worked example

The same enterprise homeware brand. Window 02 Apr 26 to 01 May 26. 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.

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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 TTD: TTD Platform → Reports → Performance, 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: Cross-connector reconciliation:

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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.

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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 or book a demo to see this metric running on your own data.