how to create BP role "contract partner" in CRM?

Hi experts,

now i'm using CRM for Utilities and IS-U/CCS.

I created BP and contract in CRM, and bp was successfully sent to ERP, but contract did not created.

I tryed to search contract in t-cd: CAA3 using bp, but message "Business partner 0002000263 does not exist in role Contract Part." was displayed.

(MSGNO:R1205)

how can i create a bp with role "contract partner" in CRM?

Role "contract partner" does not exist in CRM.

Or is there any other problem?

I don't want to maintain bp after it sent to ERP; i want customers to use only CRM and don't have to touch ERP.