Version 2.6 of the T2L system, "T2L Guide adapted to CAU_v2.6," published on June 3, includes a new element, optional in the web service and mandatory in the T2L application form. This is to indicate the heading of the preceding document. Thus, it can be seen in the version change tracker of the guide that "The <GoodsItemIdentifier> element is added to the <PreviousDocument> group at the starting level for the T2L request message."

These changes were enabled in production on July 29th. Thus, it is necessary to complete this additional information when requesting a T2L via form from this date onwards. For now, submitting it in the web service request is optional.