We are all familiar with AD restore and Recycle Bin functionalities. Azure also has a recycle bin. When you delete an object, that object is not permanently deleted. By default, that object will be in a recycle bin for 30 days.
The output of Get-MsolUser -ReturnDeletedUsers PowerShell cmdlet will provide all the objects from Recycle Bin. Once you have this information, you can either restore an individual object or restore all object using
Restore-MsolUser PowerShell cmdlet.
The following section provide step-by-step instruction of restoring an object from Azure Recycle Bin: