If you have more than one Google account active on your phone, it’s important to make sure Google Assistant is connected with the one you want. Google Assistant is able to pull details from Gmail, Google Photos, and other Google services including your calendar events as well as your Chrome browsing habits, so you’ll want to make sure you’re using your primary account.
If you accidentally set things up with the wrong account or simply want to switch over to a different account, it’s really easy.
Launch Google Assistant by long pressing the Home Button.Press the blue button in the top-right corner of the Google Assistant window.Tap the menu icon in the top-right corner of the Google Assistant window.Tap Accounts.Tap the account you want to use.
Switching between accounts is easy to do, though you’ll need to go through the quick setup process and allow the required access permissions.