Hello sam,

there are way to receive notification in odoo.

1. Handle by Emails
2. Handle in Odoo

to receive notification in odoo discuss inbox,

you need to activate 2nd option. you can find notification option in My profile/preferences option in your profile option.

For more details checkout this video: 

https://youtu.be/YK05FpRrmx8

Thanks and regards

Haresh Kansara