Generating draft revenue for expense report costs

We are currently upgrading from 11i to R12. In 11i we have only one OU and in R12 we rolled out to multiple OU's.

In 11i, revenue generation process for expense report cost is working fine. Basically we generate the revenue which is equal to cost i.e., no multipliers or no bill rates. System will derive the conversion rates based on currency code and expenditure date and generate the revenue which is equal to cost amount.

And even in R12 it is working fine from one OU and not working from new OU's.

Even though we don't use non labor bill rates, prc: generate draft revenue program completes with error 'No Non Labor Bill Rate'. Are we missing any setups in new OU's?