Salesforce: deleting a record based on external ID


I took a quick look at the documentation for the salesforce delete snap and it appears that deleting a record looked up based on External ID is not supported. Can someone confirm if my understanding is correct? If so, please advise what steps I need to follow in order to be able to delete a set of records from Salesforce based on External ID (rather than the ID).

You might consider the Salesforce Lookup snap to extract the object Id.