# WhatsApp Basics

- [WhatsApp Business Account (WABA)](/help-center/whatsapp-basics/whatsapp-business-account-waba.md): Communicate with customers through the world's most popular application
- [WhatsApp Account Structure](/help-center/whatsapp-basics/whatsapp-account-structure.md): To create a WhatsApp Business account, you must understand the associated account structure.
- [Phone Numbers](/help-center/whatsapp-basics/phone-numbers.md): This article explains how to select a phone number, add it to your WABA account, and the  sending limits of your phone number.
- [Messages](/help-center/whatsapp-basics/messages.md): This overview outlines how messages work on WhatsApp Business accounts.
- [Message Templates](/help-center/whatsapp-basics/message-templates.md): Sending WhatsApp messages using templates.
- [Authentication Message Templates](/help-center/whatsapp-basics/message-templates/authentication-message-templates.md): If your mobile application offers users the option to receive one-time passwords or verification codes via WhatsApp, you must use an authentication template.
- [Copy Verification Code Authentication Template](/help-center/whatsapp-basics/message-templates/authentication-message-templates/copy-verification-code-authentication-template.md): This article discusses WhatsApp's Copy Code Authentication Templates.
- [One-Click Autofill Authentication Template](/help-center/whatsapp-basics/message-templates/authentication-message-templates/one-click-autofill-authentication-template.md): This article describes
- [Zero-Click Authentication Template](/help-center/whatsapp-basics/message-templates/authentication-message-templates/zero-click-authentication-template.md)
- [Catalog Template](/help-center/whatsapp-basics/message-templates/catalog-template.md): This document introduces how to create a Catalog template.
- [Carousel Template](/help-center/whatsapp-basics/message-templates/carousel-template.md): This document introduces the carousel template and its usage.
- [Coupon Code Template](/help-center/whatsapp-basics/message-templates/coupon-code-template.md)
- [Limited-Time Offer Template](/help-center/whatsapp-basics/message-templates/limited-time-offer-template.md): This document introduces the limited-time offer template and its usage.
- [Multi-Product Message Template](/help-center/whatsapp-basics/message-templates/multi-product-message-template.md): This document introduces Multi-Product Message (MPM) templates, their uses, and how to create them.
- [WhatsApp Flows](/help-center/whatsapp-basics/whatsapp-flows.md)
- [Create WhatsApp Flows](/help-center/whatsapp-basics/whatsapp-flows/create-whatsapp-flows.md)
- [Send WhatsApp Flows](/help-center/whatsapp-basics/whatsapp-flows/send-whatsapp-flows.md)
- [Analyse WhatsApp Flows](/help-center/whatsapp-basics/whatsapp-flows/analyse-whatsapp-flows.md)
- [Business Verification](/help-center/whatsapp-basics/business-verification.md): Prepare and verify your BM account to send unlimited messages on WhatsApp daily.
- [Blue Tick Verification](/help-center/whatsapp-basics/green-tick-verification.md): Blue tick verification, also known as the green badge verification, is the official business account (OBA) verification by WhatsApp, used to confirm the existence of a well-known brand.
- [Compliance Information](/help-center/whatsapp-basics/compliance-information.md)
- [Opt-in to Subscribe to WhatsApp](/help-center/whatsapp-basics/compliance-information/opt-in-to-subscribe-to-whatsapp.md)
- [Opt-out of Unsubscribing from WhatsApp](/help-center/whatsapp-basics/compliance-information/opt-out-of-unsubscribing-from-whatsapp.md)