Send samples Check that the sample is labelled with the same GTIN as specified in the packing slip. The GTIN (Global Trade Item Number) is the digits under the barcode on the sample. Send the packing slip together with the sample. Send the sample so that it is delivered to the door of Validoo, for example as a business parcel or by courier. We are not able to pick up packages from a distribution point. Send a return label with the sample if you want Validoo to return it after photographing. A return label is a prepaid shipment using PostNord's business parcel service or some other transport or courier service. A tip is to send empty bags or packages that are not transparent to the studio. We fill them in place before photographing it. Please send some extra labels, in order to ensure a successful outcome.