How to change Store "From" email and name

The "From" address and name for your store transactional emails can be changed by going to WooCommerce > Settings > Email. Scrolling down to Email sender options, you will see the two fields.

If you are handing off your store to a client or would like to use a completely new email address for everything (like receiving order notifications), you can use a WP-CLI command. 

Go to WP-CLI tab and enter this command:

This command replaces all old@email.com entries to new@email.com address.