Over the past 6 months or so, I’ve been using Microsoft’s PubCenter to publish ads in my app, King Poker. It’s made me a decent amount of money (I’m averaging about $200/month right now). Three days ago, however, my revenue stopped, without explanation. I haven’t had much time to look into it, until today.

If you are using PubCenter, you need to update all of your existing Windows Phone Ad units by September 12th, or you will stop receiving ads.

In order to fix this, it’s pretty simple. Just go into your PubCenter account at http://pubcenter.microsoft.com, and update the app that each of your ad units is assigned to. (This might also be a great opportunity to update your categories, as each of them pays a different eCPM. There’s a great Windows Phone app, PubCenter Adviser, that will tell you, each day, which category is paying the highest eCPM.)

There’s an excellent blog post from the guys that run PubCenter explaining exactly what you need to do:

http://community.advertising.microsoft.com/msa/en/global/b/blog/archive/2013/06/14/changes-in-pubcenter-ad-units.aspx

Remember, you need to do this by September 12, and this does NOT require any updates to your app, thankfully.