Zoom App Which Keys Am I Supposed to Use

I have two sets of dev keys one for dev one for prod. I am in the process of getting my app approved. When I run the Dev keys I get to the app, when I use the prod keys I get a message that the app does not exist. So while in the process of getting the app approved WHICH KEYS AM I SUPPOSED TO USE for my app? It seems that they want me to use Prod keys, but when I try to use them I get nothing when testing this is what is confusing me…

Hi @preston86
For the development of your app, you should be using DevCredentials.
The marketplace team will be testing your app with the production credentials to make sure it works properly