Commands › Exchange Online

Remove-DataClassification

Exchange Online ExchangeOnlineManagement Remove-*

This cmdlet is functional only in on-premises Exchange. In Exchange Online, this cmdlet is replaced by the Remove-DlpSensitiveInformationType cmdlet in Security & Compliance PowerShell. Use the Remove-DataClassification cmdlet to remove data classification rules that use document fingerprints. You can't use this cmdlet to remove built-in data classification rules.

Quick start script

# Remove-DataClassification — 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-DataClassification
$before | Format-List

# 3. Make the change (dry run first)
Remove-DataClassification -Identity <DataClassificationIdParameter> -WhatIf
Remove-DataClassification -Identity <DataClassificationIdParameter>

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

Syntax

Remove-DataClassification [-Identity] <DataClassificationIdParameter>
 [-Confirm]
 [-DomainController <Fqdn>]
 [-WhatIf]
 [<CommonParameters>]

Parameters (4)

Parameter	Type	Required	What it controls
-Identity	DataClassificationIdParameter	yes	The Identity parameter specifies the data classification rule that you want to remove. You can use any value that uniquely identifies the data classification rule. For example:
-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		The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name...
-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.