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Measurement and verification

How to count results honestly and make better decisions from them.

Measurement and verification Explainer · 2 min read

Reported is not verified: counting marketing results properly

Why reported conversions and real enquiries differ – and the four checks that make results reliable.

Updated 13 October 2026

In the product · Performance & Verification

Measurement and verification

Upper OS checks the measurement itself and matches results against your customer database before they count.

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