As long as you are not using a Gmail account as a verification email in Google, you can change it at any time. Log in to Google using the Google Accounts homepage (see Resources) and click the ...

The Google support team will change the login email address of your merchant account to the requested email address. You'll be notified once the change is complete. Advertisement ...

To start managing your Google Business Profile in Google Search, make sure you’re signed into the Google Account email address you use to manage your Business Profile.

Accounts are considered active if a user signs in and performs any one of a number of actions, including reading or sending an email, watching a YouTube video or using Google’s search.