B2BCatalogCombinationTree

valid
type	B2BCatalogDatePeriod
occurs	0..1
description	linked to B2BCatalogDatePeriod (with start- and end-date)

combinationNodeIds
type	B2BCatalogCombinationNodeIds
occurs	1
description	linked lenscatalogs

<xs:complexType name="B2BCatalogCombinationTree">
  <xs:sequence>
    <xs:element minOccurs="0" name="valid" type="B2BCatalogDatePeriod"/>
    <xs:element name="combinationNodeIds" type="B2BCatalogCombinationNodeIds"/>
  </xs:sequence>
</xs:complexType>