Power Platform Community Forum Thread Details

Hello,

Is it possible to amend the HTTP request Body to add a second owner to a Communication SharePoint site?

This successfully creates a Communication site with one owner, but I'm struggling to find a way to add a second owner either in this step or in a separate step after - as Communication sites don't create Groups.

{
"request":{
"Title":"@{variables('SiteTitle')}",
"Lcid":1033,
"Description":"",
"Classification":"",
"ShareByEmailEnabled":false,
"SiteDesignId":"00000000-0000-0000-0000-000000000000",
"Url":"https://xxxx.sharepoint.com/sites/@{variables('SiteTitle')}",
"WebTemplate":"SITEPAGEPUBLISHING#0",
"Owner":"@{outputs('Update_Prefix')?['body/PrimaryOwner/Email']}",
"WebTemplateExtensionId":"00000000-0000-0000-0000-000000000000"
}
}

Any help is welcome!

Thank you

Categories:

Building flows

Hi @Carl__D,

It would be possible to use a site design for this with a script action which adds the user to the Owners group.

You could use another REST api request to apply that custom site design after the communication site has been created in your flow setup.

Below is an example of that approach.

1. Create a site script and add it via the Add-SPOSiteScript cmdlet to your tenant via SharePoint Online PowerShell.
Replace the principal value by the user or group you want to use to add to the owners.

$script = @'
{
 "$schema": "schema.json",
 "actions": [
 {
 "verb": "addPrincipalToSPGroup",
 "principal": "jane@contoso.onmicrosoft.com",
 "group": "Owners"
 }
 ],
 "bindata": { },
 "version": 1
 };
'@

Add-SPOSiteScript -Title "Add additional owners" -Description "A site script to add more owners" -Content $script

2. Use the ID from the output to create a Site Design via the Add-SPOSiteDesign cmdlet. 68 is the id of a Communication site btw.

Add-SPOSiteDesign -Title "Test Communication Site" -WebTemplate 68 -SiteScripts e6af90d6-57e2-4c23-b899-c5e222c73050

3. Add another Send an HTTP request to SharePoint action. Use your new site for the site address field. Use the AddSiteDesignTaskToCurrentWeb method in the URI:

/_api/Microsoft.SharePoint.Utilities.WebTemplateExtensions.SiteScriptUtility.AddSiteDesignTaskToCurrentWeb

{
 "siteDesignId": "@{variables('SPOSiteDesign')}"
}

Community site session details

Amend HTTP request to add second SharePoint site owner

Helpful resources

News and Announcements

Quick Links

Introducing the 2026 Season 1 community Super Users

Kudos to our 2025 Community Spotlight Honorees

Congratulations to the April Top 10 Community Leaders!

Leaderboard > Power Automate

Featured topics

Product updates