If you're moving or transferring files from one user to another within a Google Apps domain, that can be accomplished using a transfer tool within the Admin Console.
And the bad news: if you're moving or transferring files from one user to another outside a Google Apps domain, there is not a native tool for that function.
However, there is a work-around. Here's how it works.
- Let's pretend you have user@domain1 and user@domain2.
- You want to move (change ownership) of files from user@domain1 to user@domain2.
- In the user@domain1's Drive, create a folder called INBOUND and share it to user@domain2.
- In the user@domain1's Drive, copy or move all of the content you want to move into the INBOUND share.
- In the user@domain2's Drive, find the INBOUND share and make a copy the file.
- The copied file is now owned by user@domain2.
- Unshare the INBOUND folder in user@domain1's Drive.
Now, all of this sounds pretty cool until you notice two things:
1. Google Drive doesn't have a native way to copy a Folder. What an oversight?
2. Google Drive appends a text string of "Copy of" in front of the file. Very obnoxious.
Low, another work-around.
- In user@domain2's Drive, create a new Spreadsheet.
- Add an Add On called copy folder. You'll need to search for it and grant it permissions.
- In the spreadsheet, select the Add On copy folder.
- The UI is pretty simple: select the INBOUND folder and process.
- The script will recurse through the INBOUND folder and make a duplicate of it; it will also recurse the subdirectory structure and re-create subdirectories.
- The copied INBOUND folder will now be owned by user@domain2.
- You can now unshare the INBOUND folder.
A couple of notes on the copy folder add-on.
- It's not perfect. Expect it to crash on long recursive processes.
- I think the "breaking" of recursive processes may be due to ownership rights of objects within the folder being copied - but I'm uncertain at this point.
- Instead, try to break down your copying process into batches - handling sub-directories separately.
One day, maybe ... soon? ... Google may feel nice enough to create a means of copying a Folder within the web user interface. Then, one day, by the Grace of Google, we could assign ownership rights outside of a Domain to another Google Apps user. But until then, I offer these work-arounds.