We are applying for the instagram_business_basic scope and have provided a test IG account to the reviewers. However, the feedback we received states: "While reviewing we are unable to process as provided Instagram credentials are leading to a 2FA." Unfortunately, we are unable to disable 2FA from the Instagram app, nor can we provide access to the reviewers through backup codes.
What are the possible ways to ensure that the reviewers can successfully log in to our IG account?

Dear friend I have an issue with submitting the app for review. I have completed all the information in the app setting basic. after that, I submit the app for review always shows message as the image below. Please help me about this case. Best Regards,

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The link to "View Best Practices" on the image points to https://developers.facebook.com/docs/app-review/resources/sample-submissions/server-to-server#providing-verification-details however traversing to that location ends in a 404.