<!-- Metric dictionary entry · from Chapter 18 of The Product 360 Handbook -->

# Metric: [Name] · ID [metric-id] · v[n]

**Owner (accountable):** [name]   **Steward (maintains logic):** [name]   **Status:** Draft / Approved / Deprecated

## Definition
One sentence a customer could read.

## Formula in words
- Numerator:
- Denominator:
- Filters and exclusions (test tenants, internal accounts, trials):
- Deduplication rule:

## Grain and time
- Grain (event, user, account):
- Time window (weekly, trailing 12 months, snapshot date):
- Fiscal or calendar:

## Allowed segments
[Tier, region, channel, cohort, product line]

## Source
- Source of record:
- Semantic layer name:
- Freshness:

## Type
Input / Output · North Star / Health / Guardrail / Financial · Billing unit? Y / N (if Y, finance co-owns)

## Targets and thresholds
- Target:
- Exceptional variation means:

## Caveats
What this metric can't tell you, and how it could be gamed.

## Decisions it informs
[Reports and decisions]

## Change log
| Version | Date | What changed | Why | Approved by | Charts that need a marker |
|---|---|---|---|---|---|
| | | | | | |