# Page Not Found The URL `files/CnD9YUCl6AcY0CvahRy9` does not exist. This page may have been moved, renamed, or deleted. ## Suggested Pages You may be looking for one of the following: - [Can I use Wechat Official Account to join WeChat Group?](https://docs.ochats.io/faq/can-i-use-wechat-official-account-to-join-wechat-group.md) - [Connect to channels](https://docs.ochats.io/module-tutorial/connect-to-channels.md) - [Upload contacts](https://docs.ochats.io/module-tutorial/upload-contacts.md) - [Why I cannot search for my LINE ID?](https://docs.ochats.io/faq/why-i-cannot-search-for-my-line-id.md) - [If I saw double tick in Message module, does it mean that my contact has received & read my message?](https://docs.ochats.io/faq/if-i-saw-double-tick-in-message-module-does-it-mean-that-my-contact-has-received-and-read-my-message.md) ## How to find the correct page If the exact page cannot be found, you can still retrieve the information using the documentation query interface. ### Option 1 — Ask a question (recommended) Perform an HTTP GET request on the documentation index with the `ask` parameter: ``` GET https://docs.ochats.io/faq/can-i-use-wechat-official-account-to-join-wechat-group.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. ### Option 2 — Browse the documentation index Full index: https://docs.ochats.io/sitemap.md Use this to discover valid page paths or navigate the documentation structure. ### Option 3 — Retrieve the full documentation corpus Full export: https://docs.ochats.io/llms-full.txt Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive. ## Tips for requesting documentation Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/faq/can-i-use-wechat-official-account-to-join-wechat-group.md`). You may also use `Accept: text/markdown` header for content negotiation.