Be Careful with Retention Labels Configured with Created Date Expiration

Retention Labels and the Last Modified Date

Retention policies and retention labels have been around for about 8 years. Some of the older retention settings might use file created dates to remove items. No doubt basing retention on creation dates made perfect sense at the time, but experience shows that maybe basing retention on the last modified date can be better. All explored here together with a script to update retention labels in OneDrive.

Processing Microsoft 365 Retention Labels with the Microsoft Graph PowerShell SDK

Two types of retention labels are in use: Microsoft 365 retention labels and MRM retention tags. Clients hide the difference, but the Microsoft Graph PowerShell SDK cmdlets can only process Microsoft 365 retention labels for files stored in SharePoint Online and OneDrive for Business. EWS can manage MRM retention tags, but it’s on a fast path to retirement in 2026…