If you have multiple QuickBooks Commerce accounts, you can quickly switch between them by clicking on your Profile section located at the top right-hand corner of the screen.
From there, you'll be able to see the other accounts that are connected to your profile. All of which will be pulled up. Click on the account that you would like to switch to.
When this account has successfully loaded, you'll notice the Account/Company name has changed under your name. In this example, the account has changed.