Adding an Expo build to an existing iOS app

Hi, I have an app in the Apple App Store already that I built with Ionic/Cordova. Since Cordova is horrible and Expo is great, we decided to switch to Expo. I built my app and now I’d like to deploy to the App Store, but I don’t want to create a new app- I would like to upload the new ipa to my existing app (not sure if I’m using the right terminology). We have 1500 users and we’d like to be able to keep them without having to start from scratch.

What do I need to do in order to apply this new ipa to an existing app?

Thanks!

bundleIdentifier needs to be the same

thanks!