Problems in Modifying Enhancement-Section in ECC6.0

Hi All,

For a Ramp-up I have to modify Function Module KEIZ_PROJECT_UC_CALCULATE in ECC 6.0, The code which needs to be modified is locked under Enhancement-section, So I used OSS Note help 922557 to modify, by creating a new Implementation,

When I debug, the code is going to the standard Enhancement-section provided by SAP and not the enhancement-section modified by me.

My questions how do we get system only to look into code in modified Enhancement-section and not the original Enhancement-section.

Please help as I am very new to this Enhancement-section, I have looked into different documentation but couldn't get my problem solved.

Thanks a Lot

Kumar