Litigation holds were great when introduced with Exchange 2010. Fifteen years on, better methods exist to preserve user information, like eDiscovery holds. It might seem unnatural to move from litigation holds to eDiscovery cases, but this approach allows the preservation of both mailbox and OneDrive content for as long as necessary. Retention policies can serve the same purpose, so choice exists for modern preservation.
SharePoint Online intelligent versioning uses algorithms to decide what file versions must be kept for file recoverability. Unwanted versions are discarded (trimmed). A notional 500 version limit applies when intelligent versioning is in force but if data lifecycle management (retention) is used, SharePoint cannot trim versions to keep within the 500 version threshold. Some change is needed to resolve the conflict.
A little known fact is that you can use graphic symbols and characters in Office 365 labels. It might bring a splash of color to your compliance and retention efforts, especially in a world where emojis are everywhere. After all, the symbols are just character codes that computers can process and Office 365 is designed to be multilingual and cope with different character sets (like the way Teams deals with Hebrew and Arabic).
Microsoft Teams support Office 365 retention policies, but how do you know if policies you create are effective in removing items from Teams? Well, as it turns out, you must go poking under the covers to validate that removals happen as planned.
Microsoft says that they will soon send email to users when Office 365 detects a higher than normal number of file deletions in SharePoint Online sites and OneDrive for Business accounts. There’s no real detail provided as to what counts as a high volume or why Microsoft is sending the notifications.