/callout
In Notion
Adds a highlighted box with an icon, for notes and warnings.
Where you type it
In any Notion page (type / on a new line or in a block).
Add
The text you want to stand out.
Example
/callout
Press Esc to close the / menu if you just want to type a slash. A real command built into Notion, checked against its own help pages in November 2026. Official help page
In Obsidian
Finds Insert callout, which adds a note callout or wraps your selected text in one.
Where you type it
In the Obsidian editor, at the start of a line or after a space.
Before you start: Turn on Slash commands in Settings → Core plugins. Templates and Daily notes are separate core plugins you may also need to turn on.
Add
Your note. Change the type, like [!tip], if you like.
Example
/callout
Obsidian matches loosely, like its Command palette, so a few letters find any command. Press Esc or Space to close the search. A real command built into Obsidian, checked against its own help pages in November 2026. Official help page