Add for review 'save" btn is not working when select build

I set up all the App Store details, including support info and other required information, but I’m having an issue when adding a build and trying to save. The Save button turns red, and I’m not sure why. It’s not showing what I’m missing in the setup.

Hi there, thank you for reporting this! Can you please verify that the builds you're attempting to attach to your version aren't internal only builds. Internal only builds can't be attached to app versions.

https://aninterestingwebsite.com/help/app-store-connect/manage-builds/choose-a-build-to-submit/

https://aninterestingwebsite.com/documentation/xcode/distributing-your-app-for-beta-testing-and-releases

Add for review 'save" btn is not working when select build
 
 
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