Update reports.md

Added Cody Pro Documentation

content/departments/data-analytics/reports.md

@@ -196,3 +196,27 @@ We've configured Redash to authenticate you with your Sourcegraph Google account
 ### **How do I use it?**
 
 Here's a quick [loom overview](https://www.loom.com/share/f4473f4930d947cc9514d39c8fba46ea) to get you started.
+
+## **Cody Pro Internal Reporting**
+
+### **Reporting Data Source of Truth**
+After evaluating Stripe's dashboard, its raw backend data, and our internal data (Self-Serve Cody, SSC) for Cody Pro reporting, we chose to pivot from using Stripe to SSC due to greater control and flexibility over our data. This decision came after addressing a discrepancy between the Slack bot (using Stripe's backend data) and Stripe dashboard figures achieving a 97% data match. The move to SSC, despite a current and lower 93% match confidence with Stripe data, will promise improved internal reporting after resolving a [critical bug](https://github.com/sourcegraph/self-serve-cody/issues/707) in active subscriber counting. Stripe remains essential for financial reporting compliant with GAAP, while SSC will serve our in-depth analytics.
+[Click here](https://docs.google.com/document/d/1VX2VpoPzNCfOA_dCRrIM6_Dk5O5rY9bgI3yia0-oHDU/edit?usp=sharing) for a more detailed review of these sources' evaluation, implications, and resolutions.
+
+### **Data Fields + Description**
+
+- **date**: The reference date for the data snapshot (PST).
+- **daily_subscribers**: The count of users who initiate a first or subsequent billing cycle of Cody Pro on a specific day.
+- **new_subscribers**: The count of users who start their first month of a Cody Pro subscription on a specific day.
+- **retained_subscribers**: The count of users who are active subscribers commencing their second or subsequent month of a Cody Pro subscription on a specific day.
+- **canceled_subscribers**: The count of users whose subscriptions terminated on a specific day.
+- **active_subscribers**: The total count of users with an 'active' subscription status on a specific day.
+- **daily_revenue**: The total revenue generated from daily_subscribers, calculated as daily_subscribers multiplied by $9.
+- **daily_revenue_added**: The revenue generated from new subscribers, calculated as new_subscribers multiplied by $9.
+- **daily_revenue_retained**: The revenue from retained subscribers, calculated as retained_subscribers multiplied by $9.
+- **MRR (Monthly Recurring Revenue)**: The monthly revenue from active subscribers, calculated as active_subscribers multiplied by $9.
+- **ARR (Annual Recurring Revenue)**: The annualized MRR, calculated as MRR multiplied by 12.
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