Whenever creating the SAD or Intrastat report directly from the document in
Goods module (glej Kreiranje
ECL-a in Kreiranje Intrastat), the following
message is returned in case you are trying to create SAD/Intrastat for a
document already linked to an existing document:

The number of the SAD or bookkeeping entry, that is, Intrastat form, which is
linked to the document, is displayed in the brackets.
Clicking
opens the SAD/Intrastat form.