# Require topics in channel messages If a user sends a message without a topic, the message's topic is displayed as **(no topic)**. Administrators can configure whether channel messages must have a specified topic. ## Require topics in channel messages {!admin-only.md!} {start_tabs} {settings_tab|organization-settings} 1. Under **Other settings**, toggle **Require topics in channel messages**. {!save-changes.md!} {end_tabs} ## Related articles * [Introduction to topics](/help/introduction-to-topics)