My 2 cents approach in 3 steps :
Step 1 : SNOTE
Install : SAP Note 2029824
Step 2 : SE73 -> Select System Bar Codes->Change
Create a ZQR barcode using New Technology ( I would recommend you to read SAP Note 2030263 . It explain very well QR possibilities )
Step 3 :
Select your ZQR Code -> Edit -> Test Barcode (F6)...voila ! ( even with your phone you should be able to scan the picture bellow )
