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The Probative Standard · v1.0 · §Data quality

Signal Health: eight data-quality checks

Updated October 24, 2026 · CC BY-ND 4.0

Definition

Signal Health is page one of every Probative report: eight checks that decide whether a period's results are good enough to act on.

The Probative Standard v1.0, §Data quality.

Signal Health is a set of eight data-quality checks that decide whether a period’s results are good enough to act on. It is page one of every Probative report. Results below the account level count as decision-grade only when the checks hold.

The eight checks

CheckThreshold
1. ID coverageAt least 85% of paid leads carry a click ID or call ID
2. Source coverageAt least 90% of signed cases have a known source, in any view
3. ReconciliationReported and firm signed counts agree within 2% on the signing-date basis, or within 1 case when there are fewer than 50 (reconciliation)
4. Required fieldsAt least 95% of leads have a source or click ID, a language, a case type and stage timestamps
5. Stage timelinessAt least 90% of leads get a qualified-lead decision within 7 days; Google recommends conversion delays under 7 days for value-based bidding (Google)
6. Upload healthDaily uploads complete, with failed rows under 2% and no gap longer than 2 days
7. OutagesEvery tracking outage is logged, with a bidding data exclusion (Google)
8. ConsentEvery tracked line plays a recording notice, and consent logs are complete

When a check fails

  • The report still publishes. Account totals carry a failure note, and every segment below the account is greyed out and labeled “below standard”. No decision rests on it.
  • The fix comes first in that week’s report.
  • Tests need checks 1 to 7 to pass for their whole window, or they are inconclusive.
  • Public results need every check to pass for the whole period.

What else the page shows

The last good upload to each destination, with rows by stage; Local Services Ads leads rated; the stage mapping and the versions of the value bands and upload policy in force; the error table; and a change log of value revisions, bidding changes and excluded outage dates.

Why it matters

Bidding systems learn from what they’re sent. A week of broken tracking, uploaded as if it were real, teaches the platform the wrong lesson. Signal Health makes the data’s condition visible before anyone acts on it.

Cite as: The Probative Standard v1.0, Signal Health. Last reviewed October 24, 2026, by the Probative editorial team.

Questions firms ask

What happens when a Signal Health check fails?
The report still publishes, but every segment below the account is greyed out and labeled “below standard”, no decision rests on it, and the fix is the first item in that week’s report.
Do public results need Signal Health?
Yes. Every check must pass for the whole period behind any published result.

Sources

  1. Google Ads Help, conversion delays and value-based bidding · Accessed October 24, 2026
  2. Google Ads API, data exclusions · Accessed October 24, 2026

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