FI/MM - COPA Integration Scenarios

Dear Experts,

I am new with COPA and we are implementing it in out client. We need to integrate COPA with SD, FI/MM & PP.

I need to know what would be the general scenarios in FI/MM which would require FI/MM integration with COPA as it would clear my understanding and give me some starting point to initiate with COPA & FI/MM integration.

Thanks in Advance!

Regards,

Sapna