SharePoint Migration Error 0x0207000B

Message	PendingAction	ExceptionId
Task Validation Failed.	ACTION_STOP	0x0207000B

I attempted to upload six folders from a client's file server to OneDrive using the SharePoint Migration tool. It failed with the above error on each folder. I had done a csv upload of the folder list.

I did a thorough search online, and Microsoft's error list doesn't even include it.

After reviewing all my settings, I discovered that I had reversed the slash in the pathing. 

OneDrive@client.com/Documents/Shared\Folder

Since it is a web path, need forward slashes.

OneDrive@client.com/Documents/Shared/Folder

An easy fix, but one that isn't documented.

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