SAD Guidelines - E40
Box 40: Summary declaration/Previous document
Using the relevant Community codes from Annex 38, enter the reference particulars of documents preceding export to a third country/dispatch to a Member State.
Where the declaration concerns goods re-exported following discharge of the customs warehousing procedure in a type B customs warehouse, enter the reference particulars of the declaration entering goods for that procedure.
In the case of a declaration entering goods for the Community transit procedure, give the reference for the previous customs destination or corresponding customs documents. Where, in the case of non-computerised transit procedures, more than one reference has to be entered, the Member States may provide that the word "various" be entered in this box and a list of the references concerned accompany the transit declaration.