> ## 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, MediaMath > Zero-Conversion Spend for MediaMath 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 MediaMath **campaigns** that recorded zero conversions across the entire window. Campaign-level twin of [Wasted Spend](/nerve-centre/kpi-cards/mediamath/wasted-spend). **MediaMath caveat (May 26)**: post-restructure pixel instability can artificially classify whole campaigns as zero-conv when the issue is platform-side. **Always check pixel health before pausing or restructuring on this connector.** | | | | -------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **What it counts** | Spend (account currency) summed across campaigns where `conversions = 0` AND `clicks > 0 OR impressions > 1000` AND `campaign_age >= 7 days`. | | **Cost basis** | Whatever the campaign was bidding on (CPM, CPC, Brain CPA target). | | **Currency** | Account currency. | | **Conversion attribution** | Click-through + view-through. | | **Attribution window** | 30/1 default. | | **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 MediaMath, that investigation starts with pixel health, not campaign config**. | | **Roles** | owner, marketing, finance | ## Calculation Calculated automatically from your MediaMath 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 | Status | | -------------------------------- | ----------- | ---------- | ----------- | ----------- | ----------------------- | | Display Prospecting (Brain) | Display | 124 | 24,800 | 168 | OK | | CTV Premium PMP, NBC | CTV | 92 | 28,400 | 142 | OK | | Video Pre-roll | Video | 68 | 12,200 | 64 | OK | | Retargeting | Display | 102 | 6,800 | 282 | OK | | **CTV "Outdoor Furniture" test** | **CTV** | **22** | **1,800** | **0** | **ZERO-CONV ALERT** | | **Display creative C test** | **Display** | **14** | **620** | **0** | **ZERO-CONV ALERT** | | New Audio test | Audio | 4 | 240 | 0 | Excluded (\<7d) | | **Total zero-conv (this card)** | | | **\$2,420** | **0** | **3.4% of total spend** | What's interesting: 1. **CTV "Outdoor Furniture" test (\$1,800) is the bigger problem.** 22 days CTV with no view-through conversions. **Action sequence on MediaMath specifically**: (1) Check pixel health for the CTV view-through tag during the period; if outage detected, revisit at next pixel-stable window. (2) Check view-through window setting; should be 7 days for CTV test campaigns. (3) Only after both confirmed healthy, treat as audience or creative issue and pause. 2. **Display creative C test (\$620)** at 14 days zero-conv but 14 days is the borderline threshold. Wait another 7 days, then act if still zero. The 14-day mark is when DSP zero-conv genuinely becomes diagnostic; before then, BidCore/Brain learning phase noise dominates. 3. **The new Audio test (4 days old)** is excluded by design. 4. **3.4% zero-conv is healthy band.** Issue is concentrated in two test campaigns; not structural. 5. **MediaMath-specific**: cross-reference T1 platform status notifications. If MediaMath had a pixel issue during the test campaigns' windows, the zero-conv read may be a false positive. Check before acting. Quick sanity tests: * Single campaign zero-conv with high impressions = pixel/goal misconfig OR audience mismatch. **On MediaMath, pixel first.** * Multiple campaigns zero-conv simultaneously = global pixel issue (likely on this connector). * Account-wide conversions also dropped on same date = global outage; very likely platform-side. * CTV campaign zero-conv = view-through window check first. * Resolved post-pixel-fix = pixel issue, not campaign issue. ## Sibling cards merchants should reference together | Card | Why pair it with Zero-Conversion Spend | | ---------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- | | [MediaMath Wasted Spend](/nerve-centre/kpi-cards/mediamath/wasted-spend) | Placement-level twin. | | [MediaMath Clicks vs Conversions](/nerve-centre/kpi-cards/mediamath/clicks-vs-conversions) | **Pixel-health canary, especially important on MediaMath.** | | [MediaMath Total Spend](/nerve-centre/kpi-cards/mediamath/total-spend) | Context. | | [MediaMath Conversions Trend](/nerve-centre/kpi-cards/mediamath/conversions-trend) | If account-wide conversions dropped, suspect platform issue. | | [MediaMath Conversion Actions](/nerve-centre/kpi-cards/mediamath/conversion-actions-breakdown) | Goal/event configuration check. | | [The Trade Desk Zero-Conversion Spend](/nerve-centre/kpi-cards/the-trade-desk/zero-conversion-spend) | If both DSPs show zero-conv, suspect site-side issue (pixel, checkout). | ## Reconciling against the vendor's own dashboard **Where to look in MediaMath T1:** [T1 → Reports → Campaigns](https://t1.mediamath.com/), sort by Conversions ascending. Campaigns with zero conversions and >7 days activity are the action set. **MediaMath-specific caveat**: If T1 UI shows the same zero-conv campaigns as this card AND the conversions did fire on the merchant's order-confirmation page, the gap is a pixel-ingest issue, not a campaign issue. Verify via Google Tag Assistant or the merchant's own analytics during the period. **Why our number may legitimately differ:** | Reason | Direction | Why | | ------------------------------- | -------------------------------- | ------------------------------------------------------ | | **Time zone** | Boundary days off | Org TZ vs UTC. | | **Long-tail conversion** | Card slightly high until catchup | Some campaigns pick up late conversions. | | **Pixel ingest instability** | Card high during pixel issues | False positives on this connector. | | **View-through window changes** | Direction depends | CTV window changes especially relevant. | | **Campaign age threshold** | None | Both this card and reasonable manual cut exclude \<7d. | **Cross-connector reconciliation:** | Card | Expected relationship | What causes legitimate divergence | | ---------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------- | | [`the_trade_desk.the_zero_conversion_spend`](/nerve-centre/kpi-cards/the-trade-desk/zero-conversion-spend) | Independent. If both fire simultaneously = site-side issue. If only MediaMath fires = MediaMath pixel issue. | Different campaigns. | | [`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 MediaMath attribution = MediaMath pixel issue. | | [`shopify.total_revenue`](/nerve-centre/kpi-cards/shopify/total-revenue) | Zero-conv on MediaMath doesn't mean zero Shopify revenue from MediaMath audiences; could be misattributed. | Multi-touch complicates the read. | ## Known limitations / merchant FAQs **Should I just pause every zero-conversion campaign?** No, especially on MediaMath. **Pixel health check first**, then standard DSP diagnosis (campaign config, audience, creative, landing page). The post-restructure pixel instability means MediaMath has a higher false-positive rate than peer DSPs; pausing campaigns that were actually converting (but pixel didn't fire) destroys real value. **A campaign has been zero-conv for 30 days, what now?** Same rule as on every DSP: pause and restructure. **But on MediaMath, first verify pixel health was OK across the 30-day window**. If pixel was unstable and the campaign was running, the zero-conv read may be a 30-day false positive; the campaign may actually have been performing. **Why does this card exclude campaigns under 7 days?** Brain's learning phase needs 50, 100 conversions; for fresh campaigns, 7 days is the minimum where zero-conv becomes diagnostic. **My CTV PMP shows zero conversions but I expect long view-through, what's wrong?** Check view-through window. CTV with 1-day view-through typically shows zero-conv on PMP campaigns; CTV converts on 3, 7 day delay. Set view-through to 7 days. **My audio campaign shows zero conversions, is it broken?** Same issue as on any DSP: audio is hard to attribute. Look for Branded Search lift, Direct traffic increase, or Email signup increase during the audio flight. If these absent, pause; if present, working but incremental rather than direct. **The same campaign has high impressions and zero conversions, what's most likely on MediaMath?** Order: (1) **MediaMath pixel issue**; (2) Pixel goal misconfig in T1; (3) Audience mismatch; (4) Landing page broken; (5) Creative issue. Same diagnostic tree as other DSPs but reorder priorities given platform context. **Can I trust the figure for "today" or "this week"?** Use 30-day for action. 7-day is too noisy on DSP generally and especially on MediaMath given longer ingest lag. **Why doesn't MediaMath auto-pause zero-conv campaigns?** Same reason peer DSPs don't: long-tail conversion lag means today's "zero-conv" can be tomorrow's "1, 2 conversions". Auto-pause would kill genuine campaigns. \*\*My retargeting campaign shows zero-conv but the spend is only $300, should I worry?** Less. Small samples produce statistical noise. Worry about zero-conv at $1,000+ spend. **Should I migrate the campaigns flagged here to TTD before restructuring on MediaMath?** That's a strategic call. If MediaMath ROAS is broadly OK but specific campaigns are persistently zero-conv on a stable pixel, the campaigns themselves are the issue (audience/creative/goal); migrating them to TTD without fixing the underlying issue replicates the failure. **Fix on MediaMath first, migrate later if migration is in plan.** *** ### Tracked live in Vortex IQ Nerve Centre *Zero-Conversion Spend* is one of hundreds of KPI pulses Vortex IQ tracks across MediaMath 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. 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