Apps help you add value for customers and differentiate from other agencies, so, naturally, you'll want to charge a premium for such services. When adding apps with Usage-Based billing, you can modify this pricing based on each action. Sounds enticing? Let's check it out.
Creating The Rebilling
Inside your Agency view, head to the App Marketplace section and open the App Reselling tab.

Locate your desired app; you can help yourself by using the pricing menu and selecting Usage Based.

Once you locate the desired app, click “Set Usage based Pricing” to edit it.

Edit the pricing for each item, then click Save.

📌Note: For apps with international usage, you can configure a flat per-unit markup when reselling the app's service. For example, if an SMS base price is $1.00 (UK) and $1.50 (France), an agency can add a $0.50 markup so sub-accounts pay $1.50 (UK) and $2.00 (France).
Repeat this process for each usage-based app, and you're done. This will help you increase your revenue without adding a big price tag to your app offerings.