Hi Team,
Very good link to enhance infotype.
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/70016f20-ccc3-2d10-a6a6-887d9c2e2...
Good Link to Create a custom infotype.
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/908fc993-0079-2c10-7080-b030cbab5...
Happy Learning.
Regards,
Sourya Prakash.