To enable the SAP System to output values as bar codes, proceed as follows:

1. Acquire a registered font for your bar code and install it.
2. Write your own conversion program (ABAP function module) that adjusts the values. The interface must correspond to the function module C128_DUMMY_CONVERSION_METHOD.
3. 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.
4. Format the symbol in the template with the corresponding font.