CRM - PPF- Method call - Help needed

Hi All,

I am new to CRM and trying to understand and use Post Processing Framework. My requirement is i have to make a web service call on saving a opportunity. My understanding is that PPF is analogous to Output management using Tcode: NACE.

So of the possible processing type i feel that i should be using "METHOD CALL".

Now, below are the things that i have tried and i am still not able to invoke the implementation of the BADI: EXEC_METHODCALL_PPF.

I have created an action profile as given in the below Wiki, and feel that there is a few other configurations that need done, so that on saving the opportunity the control flows to the method call that i have configured.

http://wiki.sdn.sap.com/wiki/display/CRM/Actionprofilesin+SAP-CRM

I have also gone through the links on HELP.SAP.COM, but not able to understand and put the bits and pieces together.

So, any help in achieving the above, or guidance/pointers to understand the PPF framework (i have gone through the help portal and still not able to crack it), or any documentation that is a step by step guide to achive a similar requirement would be really appreciated.

Please let me know if you need any more information,

Regards,

Chen