Use group separator for barcode in Adobe Forms

Hi gurus,

I have an issue with a label created in Adobe Forms.

I am using the barcode Code128SSCC and I have to use the group separator ASCII(29) when the quantity variable is smaller than 8 digits.

I have tried a lot of variants of doing this, but nothing with success until now. The scanner is not reading the group separator at all.

Can you please give me an idea?

Thanks in advance,

Paul.