Show the app on the back wallet pkpass

How do I show the app on the back of a pass using "associatedStoreIdentifiers" : [Adam ID]," when I do not have an app up on the app store yet.? How do I test this out? Seems like only the Adam ID works and it must be numeric? It does not like me using my teamIdentifier.com.domain.appname. Any help woudl be appreciated. Documentation passes and wallet with passes is very cryptic and sparse to say the least.