The despatch advice number set by the supplier
retann_Required
No
retann_Examples
<documentReference documentType="DespatchAdvice" id="95159" date="2021-12-02"> retann_Xpath
/b24Message/returnAnnouncement/documentReference[@documentType="DespatchAdvice"]/@id
retann_Sort
2100
retann_Id
12
retann_Type
Text