2.16 Details Your app declares support for audio in the UIBackgroundModes key in your Info.plist but did not include features that require
2.16- Multitasking Apps may only use background services for their intended purposes: VoIP, audio playback, location, task completion, local notifications, etc.
2.16 Details Your app declares support for audio in the UIBackgroundModes key in your Info.plist but did not include features that require persistent audio.
The audio key is intended for use by applications that provide audible content to the user while in the background, such as music player or streaming audio applications. Please revise your app to provide audible content to the user while the app is in the background or remove the "audio" setting from the UIBackgroundModes key.
If you have code-level questions after utilizing the above resources, you may wish to consult with Apple Developer Technical Support. When the DTS engineer follows up with you, please be ready to provide: - complete details of your rejection issue(s) - screenshots - steps to reproduce the issue(s) - symbolicated crash logs - if your issue results in a crash log
There's a setting in App Builder for this. Unless you're using background audio in your app you shouldn't check the box that says "Enable background audio playback" in App Builder when you configure your iOS app.
You should either:
1) Uncheck that box, rebuild your app, and resubmit
2) Reply back to Apple and tell them where in your content they can find audio that's got background playback enabled