Hi Eli,
You can delete the document in SP CRM with report CRM_ORDER_DELETE but it has some problems:
- If your system is productive, this report has a validation. You have to execute it in debug mode and skip validations.
- If the document has been replicated to SAP ECC you cannot delete it into SAP ECC, only in SAP CRM. And you have to skip by debug more validations about replicated document.
I hope that helps.