# WhatsAPP BUSINESS API

- [WhatsApp API Conversations & Categories](https://learn.doubletick.io/whatsapp-business-api/whatsapp-api-conversations-and-categories.md): Learn about conversations in WhatsApp API, including their categories and country-wise rates. Explore how conversations are managed and billed.
- [How Conversation Charges Works](https://learn.doubletick.io/whatsapp-business-api/how-conversation-charges-works.md): Learn how conversation charges work in WhatsApp API on DoubleTick. Understand how different template categories affect charges within the same 24-hour window.
- [Manage and View Account Quality on Meta](https://learn.doubletick.io/whatsapp-business-api/manage-and-view-account-quality-on-meta.md): Learn how to manage and view your account quality on Meta. Understand quality ratings, status impacts, and tips for maintaining high-quality ratings.
- [Messaging Limits in WhatsApp API](https://learn.doubletick.io/whatsapp-business-api/messaging-limits-in-whatsapp-api.md): Learn about WhatsApp API messaging limits, business-initiated conversations, criteria for increasing limits, and how quality ratings affect your limits.
- [Apply for WhatsApp Green Tick](https://learn.doubletick.io/whatsapp-business-api/apply-for-whatsapp-green-tick.md): Learn how to apply for a WhatsApp Green Tick badge with DoubleTick. Discover the process, key requirements, and best practices for verification and approval.
- [Upcoming Changes to WhatsApp Messaging Limits – Effective October 7, 2025](https://learn.doubletick.io/whatsapp-business-api/upcoming-changes-to-whatsapp-messaging-limits-effective-october-7-2025.md)
- [Frictionless Messaging in DoubleTick](https://learn.doubletick.io/whatsapp-business-api/frictionless-messaging-in-doubletick.md)
- [Important Update: WhatsApp Pricing Changes from October 1, 2025](https://learn.doubletick.io/whatsapp-business-api/important-update-whatsapp-pricing-changes-from-october-1-2025.md)
- [WhatsApp Business API Platform – Updated Template Rates (Effective Jan 1, 2026)](https://learn.doubletick.io/whatsapp-business-api/whatsapp-business-api-platform-updated-template-rates-effective-jan-1-2026.md)
- [Business Portfolio Pacing – What It Is and How It Affects Your Messages](https://learn.doubletick.io/whatsapp-business-api/business-portfolio-pacing-what-it-is-and-how-it-affects-your-messages.md)
- [Template Pacing – What It Is and How It Affects Your Messages](https://learn.doubletick.io/whatsapp-business-api/template-pacing-what-it-is-and-how-it-affects-your-messages.md)
- [Template Pacing vs. Portfolio Pacing – Key Differences Explained](https://learn.doubletick.io/whatsapp-business-api/template-pacing-vs.-portfolio-pacing-key-differences-explained.md)


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