My customer has been unable to install my iPad app via the MDM they're using, and I'm thinking it's because I've signed it for Ad Hoc Distribution. They recommend I resign it with a Developer ID certificate; however, that option appears to only be for macOS:
I went ahead and had my "Team Admin" generate one, and I confirmed that it works with macOS apps (doesn't even require a provisioning profile) and not with iOS ones. Is there a way to generate a Developer ID certificate for iOS?
My follow-on question is: how should I be signing it, assuming I don't want to submit to the App Store?