Protecting your Teams with Azure Sentinel

Anyone else getting errors that the followings cmdlets cannot be found? 

• Invoke-RestMethod
• Invoke-WebRequest

For context, what I have done is replaced the values with my azure data and save the file as .ps1 then ran the file afterwards.

Powershell version: 5.1

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Saved below as .ps1:

# Populate with App ID and Secret from your Azure AD app registration 
$ClientID = "<app_id>"  
$ClientSecret = "<client_secret>"  
$loginURL = "https://login.microsoftonline.com/"  
$tenantdomain = "<domain>.onmicrosoft.com"  
# Get the tenant GUID from Properties | Directory ID under the Azure Active Directory section 
$TenantGUID = "<Tenant GUID>"  
$resource = "https://manage.office.com"  
$body = @{grant_type="client_credentials";resource=$resource;client_id=$ClientID;client_secret=$ClientSecret} 
$oauth = Invoke-RestMethod -Method Post -Uri $loginURL/$tenantdomain/oauth2/token?api-version=1.0 -Body $body  
$headerParams = @{'Authorization'="$($oauth.token_type) $($oauth.access_token)"}   
$publisher = New-Guid
Invoke-WebRequest -Method Post -Headers $headerParams -Uri "https://manage.office.com/api/v1.0/$tenantGuid/activity/feed/subscriptions/start?contentType=Audit.General&PublisherIdentifier=$Publisher"  

Pete Bryan