It is possible to upload a proof or sample to the SKU so your team can easily check the label characteristics.
Go to: Modules > SKU > Upload image to a SKU
There is an specification for upload a file so that it appears properly in any device as well as in a printed production job. The size of the image must be 5.91 in x 3.94 in (300dpi) and the file must be in PNG or JPG format.
Here you can download a template in case you want to paste your sample image.