Using on the Nobl9 Web

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You can add user annotations in the SLO details page on any chart.

For this, do the following:

1. Click the required area on the chart and enter your note.
   Markdown is supported
   Up to 1000 characters per note.

2. Optional: Modify start and end time for your annotation.
   When skipped, both dates are set to startTime.

   

   Adding user annotation

3. Optional: Add labels to your annotation. For this, click in the bottom-left corner and select the required labels.

   

   Adding labels to the annotation

   Labeled annotations practical use

   You can use annotation labels to create custom columns in the Events section.

4. Once done, click Save annotation
   

   

   User annotation

The annotation is available in the following locations:

• SLO details—on the charts and under the Annotations tab
• SLO History report—on the objective charts
• Events—with the option to filter annotations by annotation labels

To edit or delete an annotation (requires appropriate permissions), click (more actions) in the top-right corner of the required annotation and select the required action:

Actions available for annotations

Layering annotations

Annotations can overlap in time.
Read more about annotation visuals.

Markdown features

In the Nobl9 Web application, you can format annotation descriptions using Markdown. This allows you to add headings, bold or italic text, links, lists, and more, making your annotations easier to read and visually appealing.

Annotations formatted in Markdown are rendered as HTML in the Nobl9 Web interface. However, when retrieved through the Nobl9 Annotations API or sloctl, they remain in their original Markdown format.

For example:

• If you enter **bold text**, it will be displayed as bold text within your annotation description.
• The same annotation, when retrieved via API or sloctl, will appear as **bold text**.

Below are some examples of Markdown syntax and how it is rendered in the Nobl9 Web interface.

---

Headings

Syntax:

    # First-level heading
    ## Second-level heading
    ### Third-level heading

Rendered:

First-level heading

Second-level heading

Third-level heading

---

Bold text

Syntax:

**this text is bold**

Rendered:
this text is bold

---

Italicized text

Syntax:

*this text is italicized* and _this text is italicized_

Rendered:
this text is italicized and this text is italicized

---

Bold italicized text

Syntax:

**_this text is bold italicized_**

Rendered:
this text is bold italicized

---

Links

Syntax:

[Nobl9 documentation](https://docs.nobl9.com/)

Rendered:
Nobl9 documentation

---

Ordered lists

Syntax:

    1. Item 1
    2. Item 2
    3. Item 3
        1. Item 3a
        2. Item 3b

Rendered:

1. Item 1
2. Item 2
3. Item 3
   1. Item 3i
   2. Item 3ii

---

Unordered lists

Syntax:

    * Item 1
    * Item 2
    * Item 3
      * Item 3a
      * Item 3b

Rendered:

• Item 1
• Item 2
• Item 3
  • Item 3a
  • Item 3b

---

Blockquotes

Syntax:

> My blockquote
> > My nested blockquote

Rendered:

My blockquote

My nested blockquote

---

Inline code

Syntax:

`this is code`

Rendered:
this is code

---

Fenced code block

Syntax:

```json
    {
        "my-annotation": {
            "name": "Tia Key",
            "event": "deployment"
        }
    }

```

Rendered:

{
  "my-annotation": {
    "name": "Tia Key",
    "event": "deployment"
  }
}

---

Tables

Syntax:

|  Column 1 | Column 2  |  Column 3 |
|-----------|-----------|-----------|
| Cell text | Cell text | Cell text |

Rendered:

Column 1	Column 2	Column 3
Cell text	Cell text	Cell text

Useful links

Check out these related guides and references:

The Nobl9 API for managing annotationsAPI referencesloctl getsloctl user guidekind: AnnotationYAML guideMarkdown cheatsheetMarkdown guide