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Problem calculating check digit?


I have an existing application where I calculate check digit and output GS1-128 barcode with no problem but I am trying to modify a part of it and the barcode it creates fails to scan. The issue has to be the check digit but I can't figure out what could be wrong. I am attempting to calculate the checksum on my own but the barcode does not scan.

I've attached the barcode this outputs using these values and it does not scan. I am using IDAutomationUniS 12 pt.

Do you have tools on your end to "force" the read of the barcode to see what it says and how it differs from what should be there?

Thanks


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10-29-20     4 year(s) ago    

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Ben

Best Answer

IDAutomation always recommends using IDAutomation font encoders for standard and Universal barcode fonts to encode and calculate check digits. Our products include the MOD10 check digit calculation.

Standard Font Encoders
Universal Font Encoders

Posted 4 year(s) ago

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Other Answers (1)
Code 128 cannot be read raw. The MOD 103 must be calculated from the entire string, not in parts. I believe you are using the Universal Font Package. For this package, it would be much easier to use the Excel Font Encoder App and use the VBA Debug function to see how the information is calculated. Is this possible in your situation?

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