Apache httpserver virtualhost not working - apache

Question

I have configured virtualhost in apache, conf contents below. (/etc/apache2/sites-available/myapp.xyz.conf). this is running on ubuntu 20.04.1
i have run "a2ensite myapp.xyz" successfully.
However, i cannot access myapp.xyz.net from browser. (We can’t connect to the server at myapp.xyz.net)
ping myapp.xyz.net in the machine works fine. but from external machine, it doesnt recognize myapp.xyz.net.
i have tried multiple suggestions but no luck.
I have updated /etc/hosts to include "127.0.0.1 myapp.xyz.net myapp.xyz.net" - no luck.
Tried changing <VirtualHost *:80> to <VirtualHost 127.0.0.1:80> and - no luck
Appreciate suggestions.
<VirtualHost *:80>
ServerName myapp.xyz.net
ServerAlias myapp.xyz.net
LogLevel warn
ErrorLog /var/log/apache2/myappconsoleError.log
CustomLog /var/log/apache2/myappAccess.log combined
ProxyPass / http://myapp.xyz.net:8069/
ProxyPassReverse / http://myapp.xyz.net:8069/
</VirtualHost>
Update:
I can access the page if i use http://1.2.3.4 . (1.2.3.4 is machine ip address).
What should my virtualhost config look like to access it by servername (i.e myapp.xyz.net)