I am building my first app. I submitted 1.0 to the App Store, it was rejected and I needed to make some changes.
Am I unable to upload a new build with changes to testflight before I resubmit those changes?
Also, I accidentally removed the app for review, so I cannot respond to the changes they asked. What do I do now?
Thank you for your help
Am I unable to upload a new build with changes to testflight before I resubmit those changes?
Yes, you can upload a new build.
But
I accidentally removed the app for review, so I cannot respond to the changes they asked. What do I do now?
That can effectively cause problems and block many processes. You may have to call support to try to clean it.