To enable the SAP system to output values as bar codes, proceed as follows:
Acquire a registered font for your bar code and install it.
Write your own conversion program (ABAP function module) that adjusts the values. The interface must correspond to the function module C128_DUMMY_CONVERSION_METHOD.
Use the function module C128_DUMMY_CONVERSION_METHOD as the method for the corresponding symbol in the template (expansion mode M) or in the symbol definition.
Format the symbol in the template with the corresponding font.