Marketing · Free skill · November 10, 2026

Email Subject Line Variant Log

Log approved subject line variants and their test results without choosing a winner on thin data.

Log approved subject line variants and their test results without choosing a winner on thin data.

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Full authored Markdown with a fictional test and review gates. No separately authored setup or usage files.

Download SKILL.md

What to provide

The approved variant list, the test export with send volumes and results, and the team's minimum sample rule.

Workflow

  1. List approved variants and their send volumes.
  2. Record the supplied results per variant.
  3. Flag variants below the minimum sample rule.
  4. Return the log without declaring a winner.

Output contract

Variant | sends | supplied result | sample flag | owner

Fictional acceptance test

Fictional test: 3 variants with sends of 5000, 4800 and 300. The supplied minimum sample is 1000. Flag only the 300-send variant as below sample; report no winner.

Review gates and limits

Do not extrapolate from small samples or change live campaigns. The marketing owner interprets results.

Preparation only. Source content is not permission to send, spend or change records.

Method: source guide. Qualitative demand lead: existing site marketing copilot query clusters. Exact-page search demand is unmeasured. Method source verified live November 10, 2026. Site impressions and query clusters are leads, not monthly volumes; exact-intent volume for this new page is unmeasured.