declarations of origin on the invoice and the invoice EUR-MED The European Commission pointed out that the Egyptian customs authorities originating invoice declarations and the invoice EUR-MED only recognizes if there are only originating products covered by the bill. To avoid, therefore problems with such mixed consignments (goods with preferential origin and non-preferential origin), should separate invoicing of goods with origin and without origin issued.

Source (German only): https://www.zoll.de/DE/Fachthemen/Warenursprung-Praeferenzen/WuP_Meldungen/2016/wup_warenverkehr_aegypten_2.html