Rename Retention Tags

Question

Hi Experts

i have a retention tags and i want to rename them using PowerShell. Lets say the Tag name is Test123 and i want to rename it to TestABC,

will the below syntax work and how do i get the retention tag GUID of Test123

Set-RetentionPolicyTag -RetentionID "Test123" -Name "TestABC"

Answer 1

You wouldnt use that generally:
https://learn.microsoft.com/en-us/powershell/module/exchange/set-retentionpolicytag?view=exchange-ps
-RetentionId
The RetentionId parameter specifies an alternate tag ID to ensure the retention tag found on mailbox items tagged in one Exchange organization matches the tag when the mailbox is moved to another Exchange organization (for example, in a cross-forest deployment or in a cross-premises deployment, when a mailbox is moved from an on-premises Exchange server to the cloud, or a cloud-based mailbox is moved to an on-premises Exchange server).

Typically, you don't need to specify or modify the RetentionId parameter for a retention tag. This parameter is populated automatically when importing retention tags in a cross-forest or cross-premises deployment.

instead use this:

Set-RetentionPolicyTag -Identity "Test123" -Name "TestABC"