Fix 90 Day Guest Filter

Author: CHRIS-BRANNON

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

@@ -32,11 +32,12 @@ function Invoke-CIPPStandardDisableGuests {
     param($Tenant, $Settings)
     ##$Rerun -Type Standard -Tenant $Tenant -Settings $Settings 'DisableGuests'
 
-    $Lookup = (Get-Date).AddDays(-90).ToUniversalTime().ToString('o')
+    $90Days = (Get-Date).AddDays(-90).ToUniversalTime()
+    $Lookup = $90Days.ToString('o')
     $AuditLookup = (Get-Date).AddDays(-7).ToUniversalTime().ToString('o')
 
-    $GraphRequest = New-GraphGetRequest -uri "https://graph.microsoft.com/beta/users?`$filter=(signInActivity/lastSuccessfulSignInDateTime le $Lookup)&`$select=id,UserPrincipalName,signInActivity,mail,userType,accountEnabled" -scope 'https://graph.microsoft.com/.default' -tenantid $Tenant |
-        Where-Object { $_.userType -eq 'Guest' -and $_.AccountEnabled -eq $true }
+    $GraphRequest = New-GraphGetRequest -uri "https://graph.microsoft.com/beta/users?`$filter=createdDateTime le $Lookup and userType eq 'Guest' and accountEnabled eq true &`$select=id,UserPrincipalName,signInActivity,mail,userType,accountEnabled,createdDateTime,externalUserState" -scope 'https://graph.microsoft.com/.default' -tenantid $Tenant |
+        Where-Object { $_.signInActivity.lastSuccessfulSignInDateTime -le $90Days }
 
     $RecentlyReactivatedUsers = (New-GraphGetRequest -uri "https://graph.microsoft.com/beta/auditLogs/directoryAudits?`$filter=activityDisplayName eq 'Enable account' and activityDateTime ge $AuditLookup" -scope 'https://graph.microsoft.com/.default' -tenantid $Tenant |
         ForEach-Object { $_.targetResources[0].id } | Select-Object -Unique)