The Ad Spend

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Notes on running an account that remembers

Field notes and research on paid media, memory, and the difference between a number and a decision.

AllGuides & ResearchReferenceProduct
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ProductJuly 4, 2026

LinkedIn Ads Budget Alerts: What's Native, What's Missing

LinkedIn Campaign Manager has no custom spend alerts. What its notifications actually cover, plus three real ways to track LinkedIn ad spend today.

3 min read
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ReferenceJuly 4, 2026

Budget Pacing

Budget pacing is how evenly a campaign spends its budget across its flight dates. Pacing alerts warn when spend is tracking toward overspend or underdelivery — ideally forecast-based, so the warning arrives while there's still time to act.

2 min read
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ReferenceJuly 4, 2026

Causal Inference in Advertising

Causal inference in advertising is the discipline of identifying which specific change caused a metric to move — as opposed to correlation, which only shows that two things moved together. It operates at two levels: channel-level (incrementality, MMM) and operational (which account change moved which metric).

2 min read
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ReferenceJuly 4, 2026

Ad Change Tracking

Ad change tracking is the practice of recording every configuration change across ad accounts — who changed what, when — in a permanent, queryable record, because the platforms' own change histories are thin, short-lived, or missing.

2 min read
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ReferenceJuly 4, 2026

Ad Anomaly Detection

Ad anomaly detection is the automated flagging of metric movements that break from an account's own baseline — as opposed to static-threshold alerts, which fire on fixed numbers and generate noise. Good systems attach the likely cause to each anomaly.

2 min read
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Guides & ResearchJuly 3, 2026

Google Ads Explanations: What It Covers, What It Misses (2026)

A fair 2026 assessment of the Google Ads Explanations feature — supported campaign types, the 90-day limit, what it diagnoses well, and where it stops short.

7 min read
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ProductJuly 3, 2026

Google Ads Budget Alerts: Native Options, Scripts, and Tools

Google Ads has no built-in budget alert. Here's what automated rules and scripts can do natively — and how to get pacing alerts in Slack every 6 hours.

5 min read
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Guides & ResearchJuly 3, 2026

Why Ad Platforms 'Forget' — and What the Memory Gap Costs You

In 2026, Google and Meta both shrank how long your data and change history survive. If you're not keeping your own record, you're losing it on their schedule.

2 min read
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Guides & ResearchJuly 2, 2026

Facebook ROAS Dropped Suddenly? Check Tracking First (2026)

Meta ROAS dropped suddenly? A large share of ROAS crashes are measurement breakage, not ad failure. Check pixel, CAPI, EMQ, and 2026 attribution changes first.

8 min read
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Guides & ResearchJuly 2, 2026

Google Ads CPC Spiked Overnight? 7 Causes to Check (2026)

Why is your CPC so high suddenly? Bid strategy changes, AI Max query expansion, new competitors, and Quality Score drops — diagnosed in order of likelihood.

8 min read
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Guides & ResearchJuly 1, 2026

Statistical Significance in Paid Media: Stop Reacting to Noise

Most marketers call winners too early and read random fluctuation as a real effect. At small sample sizes, that's not optimization — it's an expensive coin flip.

2 min read
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Guides & ResearchJuly 1, 2026

Facebook Ads Not Spending? 9 Causes and Fixes (2026)

Facebook ads active but not spending? The nine verified causes — billing holds, Learning Limited, bid caps, review delays — ordered by likelihood, with fixes.

7 min read

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