Implementing BAdI UKM_R3_ACTIVATE (credi management)

Hi,

I'm absolutely new in credit management and have never implemented a BAdI before.

Can anyone tell me how I can implement the BAdI "UKM_R3_ACTIVATE" as described here: <a href="http://help.sap.com/saphelp_erp2005/helpdata/en/5c/8fca68b3194f45b8610b510545b9e6/frameset.htm">http://help.sap.com/saphelp_erp2005/helpdata/en/5c/8fca68b3194f45b8610b510545b9e6/frameset.htm</a>

"Implement and activate the Business Add-In UKM_R3_ACTIVATE. In the implementation, set the export parameters E_ACTIVE_FLAG and E_ERP2005 to X in the method SET_ACTIVE."

Thank you and regards,

Florian