Sorry I missed a digit...UPC 8437012538016. That is 13 digits and when I add the 1 in front for case and take off the 6 at the end (check digit) and input into the Check digit calculator it says I have incorrect number length.
I used in in the check digit calculator 1843701253801 (dropping the 6 at the end) and it says it is not the right number length for GS1 key. Do I omit the last 2 digits, the 1 and the 6?
So if the UPC is 843701258016, for each it would be 0843701258016 and for case it would be 1843701258016 and I would delete the "6" at the end of the case number and put that into the check digit calculator?
