The email code is instantly generated and sent from Intuit. If you don’t receive the code immediately, the delay may be coming from your email domain server. It can sometimes take up to 30 minutes for you to receive it.

We’ve put together answers to some common questions about Multi-factor Authentication […]

Resolution for '6 digit issue: 'Has anyone else been having issues with a long delay (3-5 minutes) between requesting the 6 digit sign-in code and actually receiving it?' available: Yes.

The 6 digit issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the 6 digit issue yourself by looking for a resolution described in the article. If it is a complex 6 digit issue or you are unable to solve the issue, you may contact us by clicking here or by using other 6 digit support options.

For more information about resolving issues related to 6 digit in Quickbooks/QBO or to get support for the issue 'Has anyone else been having issues with a long delay (3-5 minutes) between requesting the 6 digit sign-in code and actually receiving it?', click the link below: