What can you do if your Pokémon Box is full?

You can "give Pokemons to the professor". Select a Pokemon, hit the menu button on the bottom right corner and press transfer. Transferred Pokemons do not belong to you anymore, and you get a candy corresponding to the Pokemon type. read more

Trade some pokemon to the in-game professor. You can try trading, Pokemon which are been caught more than one time and have a low CP to the Professor. Thanks For A2A! Hope My Answer Helps You! Good Luck! Happy Gaming! If you have any doubt, message me or comment on this answer. read more

It's my understanding you need to keep catching pokemon to get the stardust. But now I can't do that and get the message "Your pokemon box is full. You can buy more space in the shop". read more

Travel between the real world and the virtual world of Pokémon with Pokémon GO for iPhone and Android devices! With Pokémon GO, you'll discover Pokémon in a whole new world—your own! Pokémon GO will use real location information to encourage players to search far and wide in the real world to discover Pokémon. read more