Thank you for bringing this to our attention, accounts. I'd be glad to help you in accessing your account without the need to enter the code each time.
If you’re prompted to verify your account with each login, it’s due to Two-Step Authentication being enabled on your account. This multi-factor authentication (MFA) adds an extra layer of security by requiring a one-time confirmation code sent to your email or phone, thereby helping to protect your password. Should you prefer to disable this feature, please follow the steps outlined below:
Please refer to this article for more details: Secure your Intuit Account and prevent lockout with extra verification methods.
Furthermore, you can check your browser's settings to prevent your history from being cleared when the browser is closed.
Additionally, you can refer to this article to see different common sign-in issues and how to fix them: Get help if you can't sign in to your account.
Let us know if you have other concerns with the Two-Step Authentication of QuickBooks. We're here to help you in any way we can.