Android company app does not play its own sounds.

We use Honeywell CT47 scanners with our company app installed on them. When they scan something that is on a list, a sound should be played (something like “good read”). If something is not on the list, then a different sound should be played (bad read). All sounds are at full volume. We have kiosk mode enabled and the settings are rolled out via UEM Connect. Notifications are enabled in kiosk mode. Where can I adjust the settings so that the app sounds are played? Currently, only the scanner sound is played. It works on a normal cell phone. Translated with DeepL.com (free version)