CCA Assessments to COPA(KEU5)

Hi All,

If i want to allocate my indirect costs from Cost centers to COPA using assessments and receiver rules is Variable portions and Value Field/Key figure is "Revenue" or “Gross Sales”.

What is the step by step process for this? How system will allocate costs to COPA, I mean on what basis? My receiving tracing factor Valuefield/Keyfield is "Revenue" or "Gross Sales" and No Scaling.

how system allocate costs from CCA to COPA?

Please explain me steps clearly and any help is appreciated.

Thanks,

Rau