Once a person leaves BCM, their personal OneDrive account will begin the process of deletion. This is why they are not ideal for long term storage. If you need to retrieve information from former BCM employees please submit an IT Access Request. This will not stop the 90-day deletion process and you must retrieve and save the contents of said account separately to avoid loss of data.
0-30 Days
You can still see, edit, and download your files.
[Microsoft Data Retention Policy: The 1TB storage space of OneDrive will be reduced, and the files and data in OneDrive will not be synchronized again, and can only be read-only. And the OneDrive storage space will be reduced to 5GB, and your other files will not be able to be saved.]
30-90 Days
After that, for the next 90 days, it goes read-only—you can only view and download, no editing or uploading. Then, after 90 days, your data will be deleted.
To keep your stuff, just make sure to back it up before the 90 days are up.
[Microsoft Data Retention Policy: For the security of your account and preservation of file status, Microsoft can retain customer data stored in Microsoft 365 for 90 days after canceling the BCM subscription, so that subscribers can extract data. After the 90-day retention period, Microsoft disables the account and deletes customer data. If there is no operation for 90 days, your files will be deleted and cannot be restored.]
For more information about OneDrive files, go to BCM Storage: Where should my files go?