# Annotations
## What are annotations?
Annotations allow you to add context to your data. Users can annotate chart data points, view annotations in a sidebar, and reply to annotations to have threaded discussions with team members.
On line charts, they appear as bubbles on specific data points with a number indicating the number of comments associated with that data point.
## Create an annotation
Add annotations in the following ways:
* If a chart that doesn’t have any annotations in the current view: click the `Add annotation` link in the bottom-left corner of the chart.
* If a chart has annotations visible: click the `View [N] annotations` link in the bottom-left corner of the chart, then click the `+ New annotation` button at the top of the sidebar.
Create a new annotation
Annotations are associated with a specific **chart, date, and team**. They will appear on the relevant data point on the chart, i.e. on the specific series (the team's line, for a line chart), and in the month/week/day data point that the date is included in.
For charts that are not grouped by team (anything that’s not a simple line chart with one line representing a team), you will be required to enter a **date range** that the annotation is relevant for. These annotations will not appear on the chart, but just be visible in the sidebar via the `View [N] annotations` link.
{% hint style="warning" %}
You can only edit and delete your own annotations**.**
{% endhint %}
## View annotations in the sidebar
Open the annotations sidebar via an annotation bubble
Open the Annotations sidebar by clicking `Add annotation` or `View [N] annotation` on any chart.
* The annotations listed in the sidebar are specific to the selected page, and the filters that are set on the page: the date range, and the filtered teams.
* Users can `Reply` to annotations, creating threaded conversations.
* Click the `Apply filters` link next to `Reply` to reset the filters at the top of the page to what the original annotation author had been seeing\*.
* Click the `…` menu next to a comment and select `Copy link` to share a particular comment and the specific filters that were in place when the annotation was made\*.
* Click an annotation in the sidebar to highlight the relevant chart.
* Click an annotation bubble on a chart to highlight the corresponding annotation in the sidebar.
Copy a link to a specific comment.
\*This is for you to see the same data that the author was seeing, so that any trends or data numbers that they refer to make sense.
## Notifications
[Learn about annotation notifications on our Types of Alerts page.](/knowledge-base/types-of-alerts.md)
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