For some reason, I can't add my strongest Pokémon to a friendly gym? Will someone tell me why this is happening for me?


Your Pokémon must have full HP (Health Points).

You probably just defeated the gym with your strongest Pokémon and wanted to place it directly in it, but I guess you didn't conquer it without losing HP.

Not the answer you're looking for? Browse other questions tagged or ask your own question.