https://www.youtube.com/watch?v=WTjddKXBNwQ (By Max Martin, Rickard Göransson, James Alan Ghaleb, Savan Kotecha, J Kash & Charlie Puth) Max Martin and J Kash aren't on the credits, don't know the reason, but here is the proof https://www.youtube.com/watch?v=Vc3yeHosliU&t=668s#t=26m46s
Savan didn't mention Max on his posts. Maybe his input wasn't as important as the others.
QuoteMy biggest goal is to write as many number ones as Max Martin. So I've had many number ones but I want another number one. Then after that I want another number one. And then I wanna buy a house and write another number one in there. The next number one will buy another house and so will the next one. Then I'm not gonna tell anyone where I live and I'm just gonna make number ones everywhere
https://asialive365.com/charlie-puth-second-asia-visit-interview/ (https://asialive365.com/charlie-puth-second-asia-visit-interview/)