HERE Maps app users on Windows Phone and Windows 8.1 won't be able to use their Nokia accounts to sign onto those apps after April 24. They will have to start using the new HERE accounts after that date.
HERE Maps users with Nokia accounts are being emailed today with the following message:
We're writing to let you know that starting April 24th, 2015, you'll no longer be able to sign in to HERE apps using your Nokia account.This is due to recent changes in Nokia services. The good news is you can easily import all your saved favourites from your old Nokia account to a new HERE account. If you haven't already, simply update the HERE app on your Windows Phone 8 or Windows 8 device before April 24th, 2015. With the updated version, you can register for a HERE account and sign in to the app. From there, you can import all your favourites from your old Nokia Account to your new HERE account. Or you can register for a new HERE account on the web at account.here.com, and import your favourites to continue enjoying them. Please remember to import your favourites to your new HERE account before April 24th. Otherwise, they won't be saved, and you won't be able to use them thereafter. We hope you continue to enjoy using HERE.
This move is obviously yet another consequence of Microsoft's acquisition of Nokia's smartphone business and doing away with the Nokia-branded accounts.
Thanks to KD for the tip!