Sign-in errors

{
    "shortMessage": "Session already exists",
    "longMessage":  "You're currently in single session mode. You can only be signed into one account at a time.",
    "code":         "session_exists",
}

{
    "shortMessage": "You're already signed in",
    "code":         "identifier_already_signed_in",
    "meta":         {
        "SessionID": "<session ID>"
    },
}

{
    "shortMessage": "Invalid account transfer",
    "longMessage":  "There is no account to transfer",
    "code":         "account_transfer_invalid"
}

{
    "shortMessage": "Invalid action",
    "longMessage":  "We were unable to complete %s for this Client. %s",
    "code":         "client_state_invalid"
}

{
    "shortMessage": "Invalid verification strategy",
    "longMessage":  "The verification strategy is not valid for this account",
    "code":         "strategy_for_user_invalid"
}

{
    "shortMessage": "Identification claimed by another user",
    "longMessage":  "One or more identifiers on this sign up have since been connected to a different User. Please sign up again.",
    "code":         "identification_claimed"
}

{
    "shortMessage": "Update operations are not allowed on older sign ins",
    "code":         "resource_forbidden"
}

{
    "shortMessage": "not found",
    "longMessage":  "No sign in was found with id <signInID>",
    "code":         "resource_not_found"
}

{
    "shortMessage": "belongs to different user",
    "longMessage":  "The given identification belongs to a different user.",
    "code":         "resource_forbidden"
}

{
    "shortMessage": "no second factors",
    "longMessage":  "No second factors were found for strategy <strategy>.",
    "code":         "no_second_factors"
}

{
    "shortMessage": "no identification for user",
    "longMessage":  "The given token doesn't have an associated identification for the user who created it.",
    "code":         "sign_in_no_identification_for_user"
}

{
    "shortMessage": "identification or user deleted",
    "longMessage":  "Either the user or the selected identification were deleted. Please start over.",
    "code":         "sign_in_identification_or_user_deleted"
}