The ID of the return announcement, set by the sender
retann_Required
Yes
retann_Examples
<documentReference documentType="ReturnAnnouncement" id="777888" date="2021-12-09"/> retann_Xpath
/b24Message/returnAnnouncement/documentReference[@documentType="ReturnAnnouncement"]/@id
retann_Sort
1700
retann_Id
8
retann_Type
Text