Are deleted items really gone?

Posted on behalf of Steve Cox. Original post date 2014-03-08

We're trying to duplicate parts of the LP model in Salesforce - members, projects, tasks, timesheetentries, etc. One problem we're running into is that when something is deleted in LP, we need to delete it in Salesforce, but there is no 'is_deleted' flag. It appears the item is truly gone in LP. Is this the case? Any suggestions? Will we really need to query for all the project's tasks, for example, and delete any in Salesforce that we don't get back from LP?