Unable to redeem code error in configurator

Question

When installing an app purchased through the VPP onto an iPad using configurator it came up completed with error and unable to redeem code. I downloaded the spreadsheet again and reinstalled the app but it's now saying I have no codes left even though it is not installed on any device.

Answer 1

Yeah, that's what I would try next... unsupervising and re-supervising. Note that if you have any existing data on your supervised iPad it will be wiped when you unsupervise it so back it up.
Just to confirm... In iTunes, did you authorize iTunes to download apps with the same Apple ID as the one you used in Apple Configurator? Below is the workflow that you should be following to make it all work. I wrote this a while ago for an older version of AC, but the process is pretty much the same... thought you could go through it to make sure you've completed each step properly.
If unsupervising and re-supervising doesn't work and if you've followed the correct workflow in the post below, my next step would be to call VPP for Education Support at 1-800-800-2775.
Hope this helps!
~Joe
---a post I did on a previous thread---
First, go into iTunes and authorize with an Apple ID (iTunes -> Store -> Authroize this computer). It doesn't have to be a VPP Apple ID…just an ordinary Apple ID used to associate with the app. Then download the app(s). They will go to ~/Music/iTunes/Mobile Applications. These apps will be linked to the Apple ID you authorized in iTunes. Next go into Apple Configurator and add the apps on the Prepare -> Apps screen. When you try to add the app in AC (clicking on the "+" at the bottom of the screen), you should be prompted to enter an Apple ID and password (see screenshot below).
It will say that "This Apple ID will be used to redeem VPP codes…" It is NOT the Apple ID used to purchase the VPP codes… The VPP codes can be redeemed by any Apple ID.
You must enter the same Apple ID and password that you used to download the app in iTunes, and you should be good to go.
Hope this helps!! Good luck everyone.
~Joe