Error in code: CMOD using Badi

Hi all,

I am trying to implement the CMOD using BADI using below blog.

http://scn.sap.com/docs/DOC-31271

However, I am facing 2 issues in code syntax.

In the CMOD code when I have entered following code as per the blog, I get error as follows.

and in BADI I get that I_STEP is unknown.

Please help.

-Swati.