> For the complete documentation index, see [llms.txt](https://docs.xviz.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xviz.com/project-management/milestones.md).

# Milestones

Milestones in the Gantt time that help to establish mark the specific key points within the timeline. 

![Image 1: Milestones in Gantt Chart](/files/iUdQ0UB9XDlF180843ho)

Milestones serve multiple purposes, including tracking and monitoring progress, establishing goals and objectives, identifying potential delays, and communicating progress to stakeholders.

### **Steps to Configure the Milestones:**

![GIF 1: Setting up Milestones](/files/LdTqJHc7YTOAlgA1HE9r)

#### Type 1 – Multiple Milestone Date columns

1. Here's an example of a data with 3 columns for Milestone dates

![Image 2: Data Structure for Milestone](/files/RHX2PfuuTxaTTfAVrGAh)

2. Add the date columns to the **Milestone** **data field**

![Image 3: Data field to configure Milestones.](/files/nwznhXXejCQxxwCiuRY4)

3. As a result, the three milestones are plotted for every site (leaf level bars)

![Image 4: Multiple Milestones on a bar](/files/eDeUHuPP7rCFlibNekxX)

#### Type 2 - Date and Milestone Name columns

1. Here's an example of a data with a column for milestone dates and another for the milestone names.

![Image 5: Data Structure with Milestone and Milestone Name](/files/JIZ7Pz4IyQJVzR4ZalTc)

2. Add the data to the **Milestone** and **Milestone Name data fields**

![Image 6: Data field to configure Milestones
and Milestone Name](/files/G3kfFPvdRyGJk8Jq8M1J)

3. As a result, the different types of milestones are plotted on the Sites/bars

![Image 7: The output of Milestone Name](/files/wiutKaILYJFngNqG9J7g)

{% hint style="success" %}
Please refer to the documentation link below for details on milestone formatting, which allows you to customize the shape, color, and image of each milestone - [Milestone Formatting](/project-management/milestones/milestone-formatting.md)
{% endhint %}

#### Type 3 - Milestones from Data

1. A Milestone from Data is created when the start date and end date are the same.

<figure><img src="/files/vStk4ZV9HGSBTPP5dZg8" alt=""><figcaption><p><em>Image 8: Data Structure from Milestones from Data</em></p></figcaption></figure>

2. To Display Milestone from Data, navigate to the Milestone tab of the Advanced Editor, turn on “Allow Milestone from Data.”

<figure><img src="/files/Go4oPt3RWzkjgHA2XkhP" alt=""><figcaption><p><em>Image 9: Allow Milestone from Data</em></p></figcaption></figure>

{% hint style="warning" %}
"Allow Milestone from Data" is visible only when the milestone field is populated with a milestone column
{% endhint %}

As a result, Milestones from data will appear in the Gantt chart as shown in the image below:

<figure><img src="/files/BuRNnL1zIYLi2b9x43l5" alt=""><figcaption><p><em>Image 10: Milestone from Data in the Gantt Chart</em></p></figcaption></figure>

{% hint style="warning" %}
If the "Allow Milestone from Data" toggle is off, tasks where start = end date will be hidden.
{% endhint %}