msgType (MsgTypes)

b2bOpticRequest → header

values	description
ORDER
REQUEST
CALCULATION
VALIDATION

<xs:simpleType name="MsgTypes">
  <xs:restriction base="xs:string">
    <xs:enumeration value="ORDER"/>
    <xs:enumeration value="REQUEST"/>
    <xs:enumeration value="CALCULATION"/>
    <xs:enumeration value="VALIDATION"/>
  </xs:restriction>
</xs:simpleType>