---
title: "How to plan a Phase, Subphase, Work Category or Milestone on Project Schedule Modal?"
description: "Plan your Phases, Subphases, Work Categories and Milestones to track project progress and manage your resources"
url: https://support.mosaicapp.com/en/articles/252-how-to-plan-a-phase-subphase-work-category-or-milestone-on-project-schedule-modal
collection: "FAQs and Common Actions"
updated: 2026-07-24
language: en
---

# How to plan a Phase, Subphase, Work Category or Milestone on Project Schedule Modal?

Plan your Phases, Subphases, Work Categories and Milestones to track project progress and manage your resources

1.  Click **Date** on a Phase, Subphase, Work Category, or Milestone.
    
    ![](https://staticfiles.gleap.io/ghelparticle/PncSNr1Fh5AfDDdgKmjZnHwt2L2Tx7jZ78babw5NKzxGFw2RplWcllbOsMuRMStk7rr2uFm8DjL.png)
    
2.  A calendar will display with the Phase, Subphase, Work Category, or Milestone name on the top. Select a **date range** or enter the **number of workdays** for the Phase, Subphase, or Work Category. Optionally, add a **date dependency** if needed.
    
    -   For Milestones, select a **single date**.
        
        ![](https://staticfiles.gleap.io/ghelparticle/awJ1Q3yktsPadOdxAvI5Vr5m1LUv07PcSO1wb0twzDM7LuRCprNdP3zsTd2dao3FBqyx955El15.png)
        
    -   For Phases, Subphases and Work Categories, date range or number of Workdays from the start date can be set.
        
        ![](https://staticfiles.gleap.io/ghelparticle/2UBq1cv8l2jzjLloHzD1eBYEbYvHZNXGLp3XehpPEZvuaiUvopUQQxTEF2HwrffD4qULW9VHrDh.png)
        
3.  Click **Done** on the calendar. The selected dates will be updated.
    
    ![](https://staticfiles.gleap.io/ghelparticle/Jfk8hfWvn5kyHdcxbautX5AcqUyJieVgaApEtjs2VUKZCdAN87tDXNVFxmODuJUKIhQwY4BdnZT.png)