I have been building my apps and while these error messages are useful to me is there anyway to change them for the benefit of my end users? Like I would like to have them say invalid input or something like that.
Additionally, within the metadata of the app, you can disable those built in error toasts and design your own using Show-UDToast (or, more properly, New-UDAlert [1]) to account for those error cases. You should be able to use the existing error codes to track down what is causing the error and hook there.