No accounts with iTunes Connect access have been found for the team

Question

In Xcode, when I try to Product > Archive > Validate App I get the error:

No accounts with iTunes Connect access have been found fo

Answer 1

I know this has been solved, but none of the listed solutions worked for me and in case someone else is also experiencing this issue- it could be due to not enabling Two-Factor Authentication.

I was having no problems uploading builds to the App Store and within the span of 1 hour got this same issue. Once I followed Apple's documentation and enabled Two-Factor Authentication for both my organization's Team Agent as well as my own developer account, I restarted XCode and was able to successfully upload builds again.