Hi @smokinjo
Please see this, you will get clear idea here.
https://docs.erpnext.com/docs/v13/user/manual/en/setting-up/notifications
- You can set dynamic subject
- You can trigger this notification on different event like (New, Submit, Change etc)
- You can select doctype on which you want to trigger this notification
- You can put condition too.
- You can set your custom email template with passing dynamic variables too
- You can set to, cc, bcc as well from this
- In bottom you can fine Print setting from where you can set pdf template which will be sent over mail on notification trigger.