> For the complete documentation index, see [llms.txt](https://docs.quickreply.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.quickreply.ai/overview.md).

# Overview

- [Introduction](https://docs.quickreply.ai/overview/introduction.md)
- [Getting Started](https://docs.quickreply.ai/overview/getting-started.md)
- [Install QuickReply.ai on Shopify](https://docs.quickreply.ai/overview/getting-started/install-on-shopify.md)
- [Sign up for QuickReply.ai](https://docs.quickreply.ai/overview/getting-started/sign-up.md): Not on Shopify? Don't worry we got you covered.
- [Signing up and activating your account](https://docs.quickreply.ai/overview/getting-started/signing-up-and-activating-your-account.md)
- [Messaging Channels](https://docs.quickreply.ai/overview/messaging-channels.md)
- [WhatsApp](https://docs.quickreply.ai/overview/messaging-channels/whatsapp.md)
- [Setting up WhatsApp](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/setup-whatsapp.md)
- [Pre-requisites](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/setup-whatsapp/pre-requisites.md)
- [Meta Business Manager Verification](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/setup-whatsapp/fbm-verification.md)
- [Setup WhatsApp Business API](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/setup-whatsapp/setup-waba.md)
- [Become Eligible for Verification](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/setup-whatsapp/become-eligible-for-verification.md)
- [backup](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/setup-whatsapp/prerequisites-and-setup.md)
- [Use WhatsApp](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/use-whatsapp.md)
- [Error from Whatsapp](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/errors.md)
- [🚫 Error: Message Undeliverable](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/errors/error-message-undeliverable.md): When attempting to send a WhatsApp message through QuickReply.ai, users may occasionally encounter the error with error-code as 131026 and error message as "Message Undeliverable".
- [🚫 Error: This message was not delivered to maintain healthy ecosystem engagement](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/errors/error-this-message-was-not-delivered-to-maintain-healthy-ecosystem-engagement.md): When sending a WhatsApp message, you may occasionally encounter the error with error-code as 131049 and error message as "This message was not delivered to maintain healthy ecosystem engagement. "
- [Concepts](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts.md)
- [WhatsApp Business Account Profile](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/whatsapp-profile.md)
- [WhatsApp Official Business Account (OBA) / WhatsApp Blue Tick](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/whatsapp-profile/official-business-accounts.md)
- [Messages](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/messages.md)
- [Types of messages](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/messages/types.md)
- [Messaging limits & quality rating](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/messages/limits-and-quality.md)
- [Supported Media Types](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/messages/supported-media-types.md)
- [Marketing Message Lite (MM Lite API)](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/mm-lite.md)
- [Get a Free Number from Meta](https://docs.quickreply.ai/overview/messaging-channels/whatsapp/concepts/meta-free-number.md)
- [Instagram & Messenger](https://docs.quickreply.ai/overview/messaging-channels/instagram-and-messenger.md)
- [Concepts](https://docs.quickreply.ai/overview/messaging-channels/instagram-and-messenger/concepts.md)
- [Connecting Instagram / Facebook DM](https://docs.quickreply.ai/overview/messaging-channels/instagram-and-messenger/connect.md)
- [Use Instagram DM / Messenger](https://docs.quickreply.ai/overview/messaging-channels/instagram-and-messenger/use-instagram-dm-messenger.md)
- [Live Chat (Website Chat Widget)](https://docs.quickreply.ai/overview/messaging-channels/website-chat.md)
- [Concepts](https://docs.quickreply.ai/overview/messaging-channels/website-chat/concepts.md)
- [Setting up Live Chat](https://docs.quickreply.ai/overview/messaging-channels/website-chat/setting-up-live-chat.md)
- [Use Live Chat](https://docs.quickreply.ai/overview/messaging-channels/website-chat/use-live-chat.md)
- [Concepts](https://docs.quickreply.ai/overview/concepts.md)
- [Chatbot Creation Best Practices](https://docs.quickreply.ai/overview/concepts/chatbot-creation-best-practices.md): How to Think While Designing a Chatbot
- [Revenue & Orders Attribution](https://docs.quickreply.ai/overview/concepts/shopify-revenue-order-attribution.md): How QuickReply.ai tracks orders and attributes revenue across WhatsApp, RCS, and SMS.