A stock-keeping unit or SKU is a number or name assigned to a product for inventory management.
An SKU is a unique identifier assigned to each product.
ShipHero imports the SKUs you created in your store to identify your product. They must be unique across all your products and their variants. For example, if you're selling a Red Dress and it comes in two sizes, the SKUs would look something like this:
- red-dress-small
- red-dress-large
A barcode or UPC (Universal Product Code) is a method of representing data in a visual machine-readable form. Barcodes contain represented data by varying the width and spacing of parallel lines.

Important reminders:
- No duplicate barcodes; each product must have a unique barcode.
- Must be at least 5 digits and no more than 25 digits.
- No non-standard characters (such as an emoji)
- No spaces before or after.
- If you don't generate a UPC for each product on the store the ShipHero app will auto-generate one for you.
- All barcodes must be printed on white background with black print.
- Barcode data in the product MUST match the Barcode data on the ShipHero product page.
- You can print barcodes directly from the ShipHero application or apply your own
- You can edit your barcodes field on your ShipHero product page only before you add the product to the shipping plan. If you need to edit your barcode for any of your products open a Ticket with the support team.
Barcode preferred size: 52.5 mm x 29.7mm. Must be smaller than 2″ x 3"
ShipHero supports the following barcode types:
BOOKLAND EAN
Codabar
CODE 39
CODE 39 ASCII (EXTENDED)
CODE 39 Trioptic
CODE 93
CODE 128
DISCRETE 2 OF 5
EAN 8
EAN 13
EAN 128
EAN 128 + COMPOSITE
EAN-UCC 128
GS1 128
GS1 DataBar-14
GS1 DATABAR
GS1 DATABAR EXPANDED STACKED
GS1 DATABAR EXTENDED
GS1 DATABAR LIMITED
ISBT 128
KOREAN 3 OF 5
MATRIX 2 OF 5
MSI
PLESSEY
RSS EXPANDED STACKED
RSS-14
TELEPEN
UPC A
UPC E (0)
UPC E1