Multiple Contest Stats

So I checked the wiki and didn't see it. I entered a pokemon with 4 maximum contest stats into a Toughness contest(One of its 4 maxed) and was told he had low appeal. Was this due to there being more than one high stat?

Hello, yes, that's right. It's better to use a pokémon with only one maxed stat. (Here is a guide with some more info and tips.)