Hi Vlad,
To make the fields formatted with a bar code font properly 'scannable', recent versions of the Adagio Specification Editor, such as for OE or PO, have a setting in the Options / Properties area to select the Bar Code Font that you have downloaded and installed on your own. Any fields in a specification that is formatted using this same bar code font will not only have the font display, but also have the appropriate starting and ending characters added to the field value so that scanning it works.
You can see this in action from the
New release video for PurchaseOrders 8.1D, starting at 4:11.
If you are using the designer program and access the Options / Properties screen, clicking the Help button and then the System tab will show the Bar Code field in the screen for supported programs, and clicking that will give some additional help.