Commands › Exchange Online

New-ClassificationRuleCollection

Exchange Online ExchangeOnlineManagement New-*

Import new classification rule collections into your organization. In tSecurity & Compliance PowerShell, use the New-DlpSensitiveInformationTypeRulePackage cmdlet.

Quick start script

# New-ClassificationRuleCollection — quick start (serv365.ai)
# 1. Connect (app-only shown; interactive: omit the certificate parameters)
Connect-ExchangeOnline -CertificateThumbprint $thumb -AppId $appId -Organization $org

# 2. Capture the current state first — you cannot roll back what you never recorded
$before = Get-ClassificationRuleCollection
$before | Format-List

# 3. Make the change (dry run first)
New-ClassificationRuleCollection -FileData <Byte[]> -WhatIf
New-ClassificationRuleCollection -FileData <Byte[]>

# 4. Verify and diff
$after = Get-ClassificationRuleCollection
Compare-Object ($before | Out-String) ($after | Out-String)

Syntax

New-ClassificationRuleCollection [-FileData] <Byte[]>
 [-Confirm]
 [-DomainController <Fqdn>]
 [-WhatIf]
 [<CommonParameters>]

Parameters (4)

Parameter	Type	Required	What it controls
-FileData	Byte[]	yes	The FileData parameter specifies the classification rule collection file you want to import.
-Confirm	SwitchParameter		The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on whether the cmdlet requires confirmation before proceeding.
-DomainController	Fqdn		This parameter is available only in on-premises Exchange.
-WhatIf	SwitchParameter		The WhatIf switch shows what the command does without making any changes. You don't need to specify a value with this switch.

Reference facts derived from Microsoft documentation, © Microsoft, licensed CC BY 4.0; restructured with original guidance by serv365.ai.