The Pokémon Company has confirmed that, unfortunately, the goal to trade 1,000,000 Pokémon for the “Trade Pokémon at the GTS!” global mission wasn’t reached. A huge thanks to everyone who traded thousands of Pokémon using the GTS feature at Festival Plaza in Pokémon Ultra Sun and Pokémon Ultra Moon. But not all is lost—everyone who traded Pokémon toward the final tally will receive a participation prize of 1,000 Festival Coins! And Trainers who registered their game at the Pokémon Global Link before the end of the global mission will earn 2,000 Festival Coins. Check with the global mission receptionist in Festival Plaza to receive your participation prize. Good luck next time, Trainers!
Source: Pokémon Global Link