Step4: How do I register a new app in the Apple Store?

Did you register your bundle ID on the Apple developer site?

So now you have to register a new app on the Apple Connect site.

You must complete this process before you create and upload an app in Xcode.

Site URL: https://appstoreconnect.apple.com

Go to the site and click on the first "MY App".

Next, click the "+" in the upper left corner. And "New App".

 -App name: Record using uppercase and lowercase letters. Spacing is possible.

 -Default language: Select the language to use.

 -Bundle ID: Select the bundle ID registered on the developer site.

 -SKU: Write the code to distinguish your app. You can write app names without spaces.

Select the access rights and click Create.

Has a new app been created in my app?

So now you can upload from Xcode.

I will post on how to record more information about my app next time.