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Mentions (often known as @mentions) are a seamless way of drawing someone's attention to a page or comment, or assigning a task to them. When you mention a user, they'll receive a notification by email and in their workbox; if you mention them in a task, the task is assigned to them and appears in their tasks list.
There are two ways to mention someone: using autocomplete, or via the Insert menu in the editor toolbar.
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