Commands › Exchange Online

New-DlpEdmSchema

Exchange Online ExchangeOnlineManagement New-*

For more information, see Security & Compliance PowerShell. Use the New-DlpEdmSchema cmdlet to create exact data match (EDM)-based classification schemas in the Microsoft Purview compliance portal. Such schemas can be used with data loss prevention (DLP) policies.

Quick start script

# New-DlpEdmSchema — 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-DlpEdmSchema
$before | Format-List

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

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

Syntax

New-DlpEdmSchema [-FileData] <Byte[]>
 [-Confirm]
 [-WhatIf]
 [<CommonParameters>]

Parameters (3)

Parameter	Type	Required	What it controls
-FileData	Byte[]	yes	The FileData parameter specifies the DLP EDM schema that 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.
-WhatIf	SwitchParameter		The WhatIf switch doesn't work in Security & Compliance PowerShell.

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