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How to Find and Update a SharePoint Communication Site Design via PowerShell

Adam DavisAdam Davis Nov 4, 2026 868 views

Question details

The user needs to identify a custom site design that replaced the default communication site template and update its associated site script using SharePoint Online PowerShell.

How to Find and Update a SharePoint Communication Site Design via PowerShell
Product
SharePoint Online
Device & OS
not provided
Scenario
Managing and customizing SharePoint communication site templates.
Observed behavior
The administrator must list registered site designs to locate the correct ID and web template, and update or re-register the site script if the expected design is missing.
Before you start

Ensure you have SharePoint Administrator privileges and the latest version of the SharePoint Online Management Shell installed on your device.

Solution 1Recommended

Use PowerShell to Identify and Update the Site Design

Execute SharePoint Online PowerShell cmdlets to list all registered site designs, verify their configuration details, and register or update any required site scripts.

SharePoint administrators can manage custom site templates directly through PowerShell. By retrieving the list of active designs, you can easily find the specific ID associated with your communication site and apply necessary script updates.

1
Connect to SharePoint Online

Launch the SharePoint Online Management Shell and run the `Connect-SPOService` cmdlet to connect to your organization's admin center.

2
List registered site designs

Run the `Get-SPOSiteDesign` cmdlet without any parameters. This command will retrieve and display a list of all site designs currently registered in your SharePoint tenant.

3
Review site design details

Examine the output list and review each design's ID, title, web template ID, and description to locate the specific custom design that replaced your default communication site template.

4
Update the site script

If the expected site design is missing or outdated, update your JSON script file. Use the `Add-SPOSiteScript` cmdlet to add the new script, and then use `Add-SPOSiteDesign` to register the script and associate it with your site design.

Use PowerShell to Identify and Update the Site Design
Referencing Microsoft Documentation: For detailed syntax and advanced script structuring, always refer to the official Microsoft documentation on customizing default site designs in SharePoint.
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Frequently Asked Questions

Does Get-SPOSiteDesign list all site designs currently in use?

Yes, when you run the Get-SPOSiteDesign cmdlet without specifying any parameters, it retrieves and lists all site designs that are actively registered within your SharePoint tenant.

How can I find the specific IDs of the site designs?

The ID is automatically displayed in the output console when you execute the Get-SPOSiteDesign command. You can review the resulting list to locate the ID, title, and description for your target template.

Are SharePoint site design files stored in a location accessible to standard users?

No, site designs and their associated site scripts are stored centrally at the tenant level. They are accessible and manageable only by SharePoint Administrators using PowerShell or the REST API, rather than existing as physical files in a standard document library.