Reson for Rejection in Sales Transactions

Hi CRM gurus

Quick question. I would like to use similar reason for rejection code that I have in R/3 to be used in CRM on sales transactions.

I have located where I can assisnge a reason code on crm order line item but the but this not the same as found in IMG for crm.

Our business situation is such that when a line item is marked as rejected with a code then we dont want it to go to billing or shipment.

But in CRM config, the settings are entirely different that what I can easily configure in R/3....

Please let me know your thoughts...

Thanks

Jai