A Microsoft file hosting and synchronization service.
Hi TS
If Microsoft Support has already confirmed they are investigating a macOS activation/OneDrive issue, there is unfortunately no public ETA available at this time.
You could try clearing OneDrive credentials from Keychain Access and re-signing into OneDrive, as this is an official Mac troubleshooting step. Microsoft also recommends using the standalone OneDrive sync client instead of the Mac App Store version in some scenarios.
As this is a public forum, no one here can see Microsoft's internal incident status or provide a fix timeline. If you have an existing support case, I recommend keeping it open and requesting updates directly from Microsoft Support.