How can I change the from address of the V2 email notifications on my Chargebee site?

The From address can be changed by customizing the master template under Settings >> Customer-facing essentials >> Email Notifications >> Customize Master Template. This address you set here will be used for all email notifications.

Furthermore, you can also change the From address at the email notification level. However, this change will be applicable only to that specific email notification.

The From address can be changed by customizing the master template under Settings >> Configure Chargebee >> Email Notifications >> Customize Master Template. This address you set here will be used for all email notifications.

Here's a video for your reference