Scale Your Integration
Month 1 Expansion. Take your fully configured web setup to the next level by implementing the advanced, technical tracks required to scale your business.
Launch Subscriptions > Extend Your Integration > Scale Your Integration
This article builds on the Launch Subscriptions and Extend Your Integration guides. With your web platform live and fully configured, this phase covers migrating an existing subscriber base to Cleeng, webhook configuration as well as native in-app purchase (IAP) integration for Apple, Android, and TV platforms (Roku, Amazon Fire TV, Samsung TV, Vizio).
Each section is independent and conditional - you can tackle them in any order based on your specific needs.
Timeline: Month 1 (Time varies depending on your needs, e.g. the number of platforms you integrate, whether you are migrating an existing subscriber base.)
Prerequisites:
Required: Launch Subscriptions. Your web checkout and authentication flow must be functioning and entitlement checks must be in place.
Optional: Extend Your Integration completed as needed (emails are customized, any additional payment methods are added, custom fields are set up, etc.).
Technical: Familiarity with Cleeng APIs and data objects is required for the data migration section and in-app purchases integrations.
1. Migrate data
Applies if: you have an existing subscriber base
If you have an existing subscriber base on another platform, Cleeng supports two migration approaches:
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Managed Migration: Cleeng handles the migration on your behalf, including active payment details. Best for large subscriber bases where payment continuity is critical.
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Do-It-Yourself (DIY) Migration: You migrate subscriber data yourself using Cleeng dashboard (for user accounts) or APIs.
For full details on both approaches, see the Data Migration to Cleeng guide.
2. Configure webhooks
Optional - real-time event sync to your backend systems
As subscribers sign up, upgrade, or cancel, that activity is recorded in Cleeng. Your other systems - CRM, financial and billing tools, data warehouse, marketing automation - need the same information to stay accurate. Webhooks keep them aligned: Cleeng sends each event to your backend as soon as it happens, so you don't poll the API on a schedule or reconcile records by hand.
Each event carries a payload describing what changed - for example, a successful payment, a failed payment, a cancellation, or an upgrade. Your backend receives it and updates the relevant system automatically.
For webhooks overview, configuration and a full list of available event payloads, see the Webhooks section.
3. Implement in-app purchases
Applies if: you offer native mobile or TV apps
In-app purchases (IAP) let subscribers buy access to your content inside your native apps, paying through the store they're already in - the App Store, Google Play, or the TV platform's store. Because the purchase happens where the subscriber already has a payment method on file, there's no redirect to an external checkout on those platforms.
Cleeng manages entitlements across every channel, so adding IAP doesn't create a separate subscriber base to reconcile. A subscriber keeps one account and one set of access rights whether they subscribe on the web or in an app, and that access follows them across platforms.
Apart from the Cleeng-side setup, each platform requires specific configuration within its respective developer console (e.g., App Store Connect, Google Play Console), as well as custom implementation within your application.
Follow the platform-specific guides below for setup instructions:
What's next
With your scalable, multi-platform integration complete, you are ready for action. To continue optimizing your platform, explore our additional resources
- To dive deeper into advanced setup, explore subscription lifecycle flows.
- Discover architectural best practices and see how other leading publishers maximize subscriber retention and revenue by leveraging introductory offers.

