---
title: "How to add standard Subphase to a Phase on Project Schedule Modal?"
description: "Further breakdown the Phases into multiple Subphases"
url: https://support.mosaicapp.com/en/articles/369-how-to-add-standard-subphase-to-a-phase-on-project-schedule-modal
collection: "FAQs and Common Actions"
updated: 2026-07-10
language: en
---

# How to add standard Subphase to a Phase on Project Schedule Modal?

Further breakdown the Phases into multiple Subphases

Break down **Phases** further by creating multiple **Subphases**, allowing for a more detailed and structured approach to project management.

1.  Click the **three-dot menu** on the Phase where Subphases need to be added. Select **Add Schedule Item > Add Subphase**.
    
    ![](https://staticfiles.gleap.io/ghelparticle/TM2OgvzxjfXRz5U4YzLmqmY0lA1TTgOtEpHSFHmbRONmNhOiutQNTcry2XQQlWf5ElAhu6zEURO.png)
    
2.  Choose one or multiple **Subphases** from the dropdown list.
    
    A custom Subphase can also be added to the Phase by clicking "Add Custom Phase."
    
    [Learn more about adding custom Phase](https://support.mosaicapp.com/en/articles/242-how-to-add-custom-phases-on-project-schedule-modal.md)
    
    Click **Manage Standard Phases** to open a new page leading to [Org Settings > Standards > Phases](https://support.mosaicapp.com/en/articles/302-organization-settings-standard-phases.md).
    
    ![](https://staticfiles.gleap.io/ghelparticle/0AUylzAi2zVFjvgifrenwk6zBVOTMHVbJ8ypk082U9I6XgTnu6bxofNo9OstRCwTa51MxceZu8o.png)
    
3.  Click the **Add Phases** button at the top to confirm.
    
    ![](https://staticfiles.gleap.io/ghelparticle/8W5aXl4a4cbjJY5zpmOuzz5bdr9tqCmq83n3gsPDE7fGl3H8s6IJjo1bdIcK2GnGgBCn8oDgdJ9.png)
    
4.  The Subphases will show on the list.
    
    ![](https://staticfiles.gleap.io/ghelparticle/6Ru7upkuzoomTw1cdHtF7x5DNp8WmrkYRVVFfQovunYK09fawSV2BW2PEGsgFuSTQqjw7e8chkY.png)