Merge pull request KelvinTegelaar#1524 from ngms-psh/createmissing-sp-tpss

Fix: Create missing SP RestrictThirdPartyStorageServices

Author: JohnDuprey

Modules/CIPPCore/Public/Standards/Invoke-CIPPStandardRestrictThirdPartyStorageServices.ps1

@@ -59,7 +59,7 @@ function Invoke-CIPPStandardRestrictThirdPartyStorageServices {
                 # Normal /servicePrincipal/AppId does not find the service principal, so gotta use the Upsert method. Also handles if the service principal does not exist nicely.
                 # https://learn.microsoft.com/en-us/graph/api/serviceprincipal-upsert?view=graph-rest-beta&tabs=http
                 $UpdateUri = "https://graph.microsoft.com/beta/servicePrincipals(appId='$AppId')"
-                $null = New-GraphPostRequest -Uri $UpdateUri -Body $DisableBody -TenantID $Tenant -Type PATCH
+                $null = New-GraphPostRequest -Uri $UpdateUri -Body $DisableBody -TenantID $Tenant -Type PATCH -AddedHeaders @{'Prefer' = 'create-if-missing'}
 
                 # Refresh the current state after disabling
                 $CurrentState = New-GraphGetRequest -Uri $Uri -tenantid $Tenant | Select-Object displayName, accountEnabled, appId