How to delete the SC in the SRM by backend?

Hi Experts.

We've faced a huge trouble. We're using the BBP_EXTREQ_TRANSFER program to transfer PR from r/3 backend to SRM. Its works fine.

However when we need unrelease all items from the RC in the backend the data aren't not send to SRM. The SC still with all items.

How can we delete the SC in the SRM by backend?

Best Regards.

Paulo Afonso Cordeiro