Error: *MFA Error: The user does not support the requested challenge type (OTP). Supported type: oob.*

I am trying to have an alternate MFA with guardian if SMS isn’t working for the user. I would like to use OTP by email if the user can’t validate with the oob code sent by SMS. However, when I submit the OTP code sent by email, I get this error:

MFA Error: The user does not support the requested challenge type (OTP). Supported type: oob.

All the endpoints seem correct, when i call /mfa/challenge I indicate challenge type as “oob otp” but I am still receiving the error. Any help would be appreciated, I can provide more details of the flow if necessary.

As it has been more than a few months since this topic was opened, and there has been no reply or further information provided as to the existence of the issue, we are closing this topic. Please don’t hesitate to create a new topic if this issue is still present, we would be happy to work with you to help find a resolution.