CmdID / PowerShell / Cmdlets / Start
Start-InformationBarrierPoliciesApplication
Use the Start-InformationBarrierPoliciesApplication cmdlet to apply active information barrier policies in the Microsoft Purview compliance portal. Exchange PowerShell reference
From the Exchange PowerShell reference 4 parameters Its page in the reference
Parameters
-IdentityThis parameter is reserved for internal Microsoft use.-CleanupGroupSegmentLinkThe CleanupGroupSegmentLink switch specifies whether to remove group segment links.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-WhatIf, -wiThe WhatIf switch doesn't work in Security & Compliance PowerShell.