Your last post does not provide any extra information.  After all, Android 9 is not Android 5.   On now many diffeent brads/models of Android 9 devices have you tested with your app?  What is/are the device brands//models used in your tests?

Hello benjamin,

how do you start the app in lockdown mode ?

is it > Launch://Namespace of the app ?

I use this on all my lockdown and no problem

Yes,

exactly.

It  works with all the apps, except for one and I'm not sure why it is like  this.

Even when you are in lockdown and send a script "start android.name" it is not working with this specific app, others work fine.

There is no error message like "app not found" or "package name not found", it just doesn't do anything.

perhpas, make a remote connection (client NOT WEB) on a device

after open the app mobile and goes to process manager tool OR application manager tool and try to find the app perhpas the name it's not correct ...

Hi,

did all that.

Name is correct, I can start it with the name without the lockdown.

What is the bundle ID of the app?  Is it 100% compatbile to Android 9?

Does the app call other apps or services when starting?

It works on Android 9, when no Lockdown is present.

ID: de.flexus.fioriclient

This app doesn't seem to be  available on Google Play store, and I have no way to test.

If the app de.flexus.fioriclien  calls some other apps/services when starting, and those apps /services have not been properly whitelisted, kiosk mode will block those apps/services, and it will appear like your  de.flexus.fioriclient cannot run.

It's not available on the app store, no.

It works with lockdown on android 5, android 9 it isn't.

Sorry about that

Android 5: Zebra TC8000

Android 9 : Samsung Galaxy Tab A

I will test it with Android 10 as well later on.

Solution found

I added the "Flexus" package to the lockdown itself.

Funny is that all others are working without this, this one isn't.

Nevertheless it's solved.