AI (00) SSCC must be exactly 18 digits with a valid check digit.
Correct the SSCC length and recompute the check digit.
^XA^BY4^FO50,50^BCN,254,Y,N,N,D^FD(00)00012345678901234^FS^XZ
AI (00) payload that is not exactly 18 digits, or whose check digit is wrong.
Neither ^PW nor ^LL is set. Both fall back to a value stored in the individual printer, not to a value in the spec — so the same ZPL prints differently on two printers of the same model.
Set ^PW and ^LL explicitly in every format.
AI (00) SSCC must be exactly 18 digits with a valid check digit.
Correct the SSCC length and recompute the check digit.
This is the field a distribution centre actually scans on a pallet. Getting it wrong means the pallet is rejected at goods-in.
This is the field a distribution centre actually scans on a pallet. Getting it wrong means the pallet is rejected at goods-in.