// response
{
"code": "INVALID_FORM_BODY",
"message": "Invalid form body.",
"errors": [
{
"path": "mfa_level",
"message": "You must enable 2FA on your account before requiring it for moderators.",
"code": "MUST_ENABLE_2FA_BEFORE_REQUIRING_FOR_MODS"
}
]
}
In request MFA is not enabled, so it's server-side validation failure
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Comment by @automataevox