(note: these two segments make up the first 11 digits of the GTIN-12) Company Prefix (this is found on your GS1 Company Prefix Certificate) For a GTIN-12, which is the only GTIN that can be used in a UPC-A barcode, you should enter the following in the the GTIN-12 field: What data should I enter in the Check Digit Calculator?Ī. If this occurs, visit the GS1 US Check Digit Calculator page to calculate this last digit for you. If the GTIN was not already provided for this product, you have to calculate the check digit.
However, if you are creating a new product, and you click the 'Assign GTIN Manually' button, you will be prompted to enter the GTIN for this product. GS1 US Data Hub will also incorporate your GS1 Company Prefix, and reserves the right number of digits for your item reference. Yes, if you click the 'Auto Assign GTIN' button when creating a new product. Does GS1 US Data Hub automatically generate the check digit?Ī. This digit is used to check that the data has been correctly composed. This is the final digit that is calculated from the other digits of some GS1 Identification keys, including the GTIN-12 and GTIN-14.
