PowerShell script for registering a new container type in a consumer tenant.

Create-SPOContainerType.ps1

<# 
.SYNOPSIS
    Registers a new container type in a consumer tenant.
.DESCRIPTION
    This script connects to SharePoint Online and registers a new container type.
.PARAMETER SpoAdminUrl
    SharePoint Online Central Administration URL.
.PARAMETER ContainerTypeName
    Name of the container type to register.
.PARAMETER EntraAppId
    Microsoft Entra application ID.
.PARAMETER AzureSubscriptionId
    Azure subscription ID.
.PARAMETER ResourceGroupName
    Name of the Azure resource group.
.PARAMETER ResourceGroupRegion
    Azure region of the resource group.
.EXAMPLE
    .\Create-SPOContainerType.ps1 -SpoAdminUrl "https://contoso-admin.sharepoint.com" -ContainerTypeName "MyContainerType" -EntraAppId "abc123" -AzureSubscriptionId "xyz456" -ResourceGroupName "ResourceGroup1" -ResourceGroupRegion "East US"
#>

param(
    [Parameter(Mandatory=$true)]
    [String] $SpoAdminUrl,
    [Parameter(Mandatory=$true)]
    [String] $ContainerTypeName,
    [Parameter(Mandatory=$true)]
    [String] $EntraAppId,
    [Parameter(Mandatory=$true)]
    [String] $AzureSubscriptionId,
    [Parameter(Mandatory=$true)]
    [String] $ResourceGroupName,
    [Parameter(Mandatory=$true)]
    [String] $ResourceGroupRegion
)


# Install SharePoint Online module
$moduleName = "Microsoft.Online.SharePoint.PowerShell"

Write-Host "Checking if module $moduleName is installed..."
$moduleInstalled = Get-Module -Name $moduleName -ListAvailable

if (-not $moduleInstalled) {
    Write-Host "Module $moduleName is not installed. Installing..."
    # Install module
    Install-Module -Name $moduleName -Force -AllowClobber
}

# Check if module is imported, and import if not
$moduleImported = Get-Module -Name $moduleName -ErrorAction SilentlyContinue

if (-not $moduleImported) {
    Write-Host "Module $moduleName is not imported. Importing..."
    Import-Module $moduleName -Force
}

# Connect to SharePoint Online
Write-Host "Connecting to SharePoint Online..."
Connect-SPOService -Url $SpoAdminUrl

# Register the container type
Write-Host "Creating the container type..."
$containerType = New-SPOContainerType -TrialContainerType `
                                      -ContainerTypeName $ContainerTypeName `
                                      -OwningApplicationId $EntraAppId `
                                      -AzureSubscriptionId $AzureSubscriptionId `
                                      -ResourceGroup $ResourceGroupName `
                                      -Region $ResourceGroupRegion

# Output the container type
Write-Host "Container type created. Here it is the data:"
$containerType