And you might want to vote for this idear: https://forum.mendix.com/link/ideas/469
Then we would have a global error handler.
Regards,
Ronald
Yes, that is possible. You should use error handing on activities that you suspect will throw errors, see the documentation here. In the error handling flow you can show a custom log message to your user. You can use this learning path to learn about custom error handling in Mendix.