Abap development for Sap-pi proxy

Hi Experts,

Am new to the proxy development.I am an ABAPER

My requirement is like PI team will give me a proxy. I need to update some BP tables using some standard BAPI in the code.

My doubt is do the PI guys will also provide me the class or do I need to build a custom class to write my code.

Can you please help me regarding how to proceed with this. I am lacking input for preparing my initial TS

Urgent help needed.

Thanks,

Duttad.