# Define the grain for a subscription analytics fact table

Canonical URL: <https://datadriven.io/problems/define-the-grain-for-a-subscription-analytics-fact-table-ea-62c79e49>

Domain: Data Modeling · Difficulty: medium

## Problem

Define the grain for a subscription analytics fact table. Each row should represent one subscription-month (one row per subscriber per month). Include the dimension keys and monthly metrics.

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