Apple Configurator: Error 5103 when redeeming code

When trying to deploy an app purchased using the Volume Purchase Program (VPP), Apple Configurator may state “Unable to redeem code”. The detailed message includes “Please enter your Apple ID and password to redeem your code”, or “MZFinance.RedeemCodeSrvLoginRequired”, along with error code 5103.

Update to Apple Configurator 1.5 or later to resolve this issue.