Flow of order reasons from crm to r/3

Hi All

I just want to know whether orders can be flowed from CRM to R/3.

In my scenario i am creating a return order in CRM with order reasons and will be replicating the same to R/3. Do order reasons also replicate to R/3 in this case.

If so what are the customizing settings i need to carry out????

Thanks

Sonali