<xsd:simpleType name="ErrorCodes_Enum_Base">
    <xsd:annotation>
        <xsd:documentation source="Description">The ErrorCode  MUST be present and is defined as free-text with a list of recommended enumerated values, to indicate the error type.</xsd:documentation>
        <xsd:appinfo>
            <otm:OTA2Entity type="EnumerationOpen" xmlns:otm="http://www.OpenTravel.org/ns/OTA2/AppInfo_v01_00">ErrorCodes_Enum</otm:OTA2Entity>
        </xsd:appinfo>
    </xsd:annotation>
    <xsd:restriction base="xsd:string">
        <xsd:enumeration value="SessionFailure-100">
            <xsd:annotation>
                <xsd:documentation source="Description">his value is used to indicate that the request version is not supported.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="SessionFailure-101">
            <xsd:annotation>
                <xsd:documentation source="Description">his value is used to indicate that the session has expired.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="SessionFailure-102">
            <xsd:annotation>
                <xsd:documentation source="Description">This value is used to indicate that the session is already closed.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="SessionFailure-103">
            <xsd:annotation>
                <xsd:documentation source="Description">This value is used to indicate that a parameter in the request is not supported.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="Unknown">
            <xsd:annotation>
                <xsd:documentation source="Description">Indicates an unknown error. Additional information may be provided within the textual part of the element.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="Malformed">
            <xsd:annotation>
                <xsd:documentation source="Description">Indicates that the XML message was not well-formed. Additional information may be provided within the ErrorMessage attribute.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="Validation">
            <xsd:annotation>
                <xsd:documentation source="Description">Indicates that a well-formed XML message was sent, but did not pass the validation check. Additional information may be provided within the ErrorMessage attribute.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="UnrecognizedRoot">
            <xsd:annotation>
                <xsd:documentation source="Description">Indicates an unrecognized payload root element was received. Additional information may be provided within the ErrorMessage attribute.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="UnrecognizedVersion">
            <xsd:annotation>
                <xsd:documentation source="Description">Indicates that the version attribute in the Schema element of the Manifest of the header is not recognized. Additional information, such as version number(s) supported, may be provided within the ErrorMessage attribute.</xsd:documentation>
            </xsd:annotation>
        </xsd:enumeration>
        <xsd:enumeration value="Other_" />
    </xsd:restriction>
</xsd:simpleType>

• ErrorCodes_Enum_Base
• ota2-0400:ErrorCodes_Enum
• ota2-0400:errorCode
• ota2-0400:errorMessage