Delete SC when req. number ia assigned

Hi Experts,

I am facing a problem.

I have created a SC without the vendor is assigned. SRM try to create a Req. but no numberrange has been set up in back-end. In table BBP_PDBEI a Req. number is assigned to the SC, comming from SRM. No Reg. is created in back-end. How do I delete this SC? I have tried FM: BBP_PD_SC_DB_DELETE with a commit afterwards. This did not delete the SC.

Best regards Kim Oster