wrong sales orders in CRM

Hello experts,

I need to delete several documents in SAP CRM 7.0.

A collegue ran a SALESDOCUMENT object without filters. A lot of documents (sales orders) have errors.

Now we need to make a rollback of this process or the way to delete all wrong documents in SAP CRM.

If anybody knows the way to do that, I'll be grateful.

Thanks so much for your help.

Maria.