So my app was rejected because
App Completeness
Submissions to App Review, including apps you make available for pre-order, should be final versions with all necessary metadata and fully functional URLs included; placeholder text...
And I can't upload my in-app purchase, because my app has an unresolved issue which is 2.1.
Topic:
App Store Distribution & Marketing
SubTopic:
App Store Connect
Tags:
App Store Connect
In-App Purchase
App Binary