> 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](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FU7L8a9Iwosins0AGwnS0%2F0.png?alt=media)

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](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2F3PMyHo94d8i9VGtoCjOU%2F1.gif?alt=media)

#### 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](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2F8AI0mbHjWX5FDJwMZFSp%2F2.png?alt=media)

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

![Image 3: Data field to configure Milestones.](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FQNOAqFdQblpw9gQTRDut%2F3.png?alt=media)

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

![Image 4: Multiple Milestones on a bar](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FOqqKIF7TbMJzIJOTHKYD%2F4.png?alt=media)

#### 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](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FiXM4xiV35RDJes4OnvH4%2F5.png?alt=media)

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

![Image 6: Data field to configure Milestones
and Milestone Name](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FkDJ8F7gf1s0n0yeD0mzU%2F6.png?alt=media)

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

![Image 7: The output of Milestone Name](https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FxaqQTKR334RLchQQ1y77%2F7.png?alt=media)

{% 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="https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FSTYL4LQWsV1q5l9VHarW%2Fimage.png?alt=media&amp;token=febd1f7e-3192-4fbd-b575-fc0fb3def121" 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="https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FwfQR5oGFxVkZ3Kce8VtB%2Fimage.png?alt=media&amp;token=e69fc736-ae32-4d19-b2e5-6dcf84b82e4b" 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="https://382510089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIuuIZWiXEx25eV75hmmJ%2Fuploads%2FX5jrotCm6SD70ZUdRSNY%2Fimage.png?alt=media&amp;token=a83b61a8-288c-4f32-b248-5eb8f43fcb6c" 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 %}