I cannot again receive code in one of my qb online account what will i do?

Thanks for joining us here in the Community, Garfield38. I understand you're having some challenges when trying to get an authentication code when logging into QuickBooks Online (QBO). 

I'll provide some helpful suggestions and outline the steps you can take to resolve this issue.

There are a couple of potential factors that could be preventing you from receiving the authentication code in your email inbox, including:

• The email might have been filtered into your junk or spam folder by mistake.
• Your email service provider's mail servers or domains might be blocking the email containing the authentication code.

It's important to note that validation and authentication code emails are sent from the address do_not_reply@intuit.com. These emails typically arrive within 1 to 2 minutes of being requested. 

First, search for the email address do_not_reply@intuit.com in all of your folders including spam and junk. If you see one of the emails from Intuit, right-click the email, then select This is not spam or Not Junk.

Second, unblock or add these service-related email addresses as a "safe sender" on your email account to make sure you receive important communications from these services:

You may also need to work with your IT department or administrator to complete the process if you're using a corporate email account. 

Additionally, you can add the QuickBooks product's sender addresses to your contact list, address book, safe senders list, or allow list. Refer to one of the following support articles for your email provider:

• AOL Mail: Manage spam and privacy in AOL Mail
• Apple Mail (Mac): Block or unblock senders in Mail on Mac
• Xfinity Email: Add Email Addresses to Your Email Safe List in Xfinity Email
• Gmail: Gmail marks valid email messages as spam
• Microsoft Outlook: Safe Senders in Outlook.com
• Mozilla Firefox: Add, Manage and share contacts
• Yahoo Mail: Manage spam and mailing lists in Yahoo Mail

You can read more details about these troubleshooting steps in this article: Receive Important Email Messages From Intuit.

Feel free to save these articles as well for reference in case you encounter related issues in the future:

• Recover Your Intuit Account If You Can’t Sign In
• Troubleshoot If Customers Aren't Receiving Emails From QuickBooks Online

Please don't hesitate to reach out if you need any further assistance, Garfield38. The QuickBooks Team is here to support you and ensure all your concerns are properly addressed.