MFA Challenge in resource owner flow results in Unauthorized error

[dan.woda]

Hi @daniel.fourman,

Welcome to the Auth0 Community!

Which endpoint is returning that error?

Also, did you see this?

Post request to "/mfa/challenge" endpoint returns "Unauthorized" error

@Sargent_D, Posting here for general visibility as well The issue we found during our debugging was the –header ‘Content-Type: application/json’ missing in the POST request to /mfa/challenge . It presented because this is currently missing our documentation. https://auth0.com/docs/mfa/authenticate-with-ropg-and-mfa/enroll-challenge-sms-voice-authenticators#challenge-user-with-otp It has been requested to be fixed in the docs.