Delete data Content Server for client

I need to delete data from content server with client criteria. I migrated SAP ERP and SAP content server and now need to delete all data from content server other than client 400 that is, just leave the data of the content server of the client 400 I have read what could be done with the reports MCDOKDEL and function module DMS_PROC_DOC_DELETE but I cannot limit by client

I will appreciate any help