If you already have an existing app, we need the following details in order to update the same app. This is important to ensure that your existing users can migrate smoothly to the latest app version.
Bundle Id
Log in to your Apple Developer Account https://appstoreconnect.apple.com/login
Click on Apps section & select your App
Click on 'App Information' under 'General' section in the left panel
You will find the bundle id under the 'General Information' section
Version Semver & Version No
Log in to your Apple Developer Account https://appstoreconnect.apple.com/login
Click on Apps section & select your App
Click on Testflight. Now you can see the last build version eg:- Version Semver: 0.6, Version Number: 32
