WinWinKit supports tracking revenue from the Google Play Store directly via Real-time Developer Notifications (RTDN) — real-time messages delivered by Google through Cloud Pub/Sub as transactions happen.

Real-time Developer Notifications

Once the integration is configured, Google sends a notification to WinWinKit each time a relevant event occurs in your app:

• Initial purchase — A user buys a subscription or one-time product for the first time.
• Renewal — A subscription auto-renews.
• Refund — Google issues a refund or voids a previous purchase.
• Trial — A user starts a free trial.

What Gets Tracked

Each Google Play transaction recorded in WinWinKit includes:

• Type — Purchase, renewal, refund, or trial.
• Amount — Gross revenue (the actual amount paid by the user), normalized to USD.
• Purchase token — Used to link renewals and refunds back to the original purchase.
• Product identifier — The product or subscription SKU.
• Environment — Sandbox or production.

User Attribution

Google Play transactions are attributed to a WinWinKit user via the purchase token and, when available, Google’s obfuscatedAccountId.

Setup

To enable Google Play revenue tracking:

1. In the WinWinKit dashboard, go to Settings → Integrations → Google Play Server Notifications and follow the on-screen instructions to obtain the Pub/Sub topic and service account credentials.
2. In the Google Play Console, enable Real-time Developer Notifications for your app and point them at the Pub/Sub topic provided by WinWinKit.
3. In your app, use the WinWinKit SDK’s method for registering or syncing transactions after a purchase completes, so WinWinKit can associate the transaction with the user.