D365 Fin & Ops> How Can I Handle Errors in Power Apps?

Hello power poeple!

I'm new to PowerApps and I'm learning how to make it work with D365 Fin & Ops.

I want to know how to handle errors that are being sent back from the D365 Fin & Ops.

For example there is the "Employee" Entity, where I can add new employees and specify their starting and ending dates.

If I add a new employee and fill the ending date with a date that is a previous to a starting date

E.g.

Starting Date: 1/1/2020

Ending Date: 1/1/2019

The D365 Fin & Ops does send back an error message in the PowerApps creator screen (while building and testing the app) saying it is not allowed for an ending date to be previous to a starting date.

But once I publish the app, and if I committed the same mistake it will not show anything, there is no feed back, it just does not allow to add and that's it.

What I want is to give feed back to the user once D365 Fin & Ops send back an error message.

How can I do that?

Thanks in advance!