Lately SAP note 2001392 has been released that allow printing of Datamatrix for some device types. There are also fonts and other 3rd party tools that allows you to print a datamatrix.
However most of these solutions have some specific requirements, as a workaround to this I created a proof of concept that allows for printing a datamatrix with minimal requriements.
The solution uses 2 tricks:
- Hardcore programming
- http://wiki.scn.sap.com/wiki/display/Snippets/Dynamic+Background+Colors+in+SmartForms
Only 10x10 datamatrices have been implemented, allowing it to contain up to 3 characters.
The code can be downloaded from https://github.com/larshp/Datamatrix
To test, run the report
and it will show the smartform as print preview
The smartform consists of a 10x10 template where the background colour of each cell is changed from ABAP,
This technique can be extended to QR, aztec and other 2d barcode symbologies.
Note: Do not regard this as best practice, however in some situations it might be beneficial to use this approach.