Niantic has revealed that Pokémon GO’s Postcard system has just gotten a new feature.
Those who utilize the Postcard system will be happy to know that you can now upgrade the maximum number of postcards you can store. If you’d like to add 50 more units of postcard storage to your game, you’ll have to cough up 100 Poké Coins.
As of right now, the maximum postcard storage amount sits at 1000. Hopefully that’s high enough to accommodate your collection!