# How does automatic message deletion work? This feature supports setting timed deletion for all message types in private chats and group chats (text/images/files, etc.). \ **Operating Process:** * Enter the chat details page → Select "Auto Delete" → Set the time limit. * Once the other party successfully receives the message, the countdown begins immediately. * After the time expires, the message will automatically be deleted from both devices and cannot be recovered. **Important Note:** This only applies to new messages: Only messages sent after the setting is applied will trigger automatic deletion. Historical messages are unaffected. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://userguide.luffa.im/communication/how-does-automatic-message-deletion-work.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. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.