I also face same issue. After the investigation I found the link https://help.apple.com/xcode/mac/current/#/dev37441e273. As per this document 'If Xcode doesn’t find an App Store Connect record for your app, the validation fails with an App Store Connection Operation Error. In App Store Connect, Add an app to your account and ensure that the bundle ID matches the bundle ID in your Xcode project.'. Then I check the role assigned with my account and It was only 'Developer'. So that I was not able to create or see my app under 'App Store Connect -> My Apps'. With 'Marketing' role I start seen option for creating new app. Also with new user role XCode pass app store build validation.
joby.abraham
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