Failed to Update SFDC

It would be really helpful if there were a way to pull a list of people with a "Sync Person to SFDC" Activity and add constraints to that activity of exceptionMessage containing or fault containing. We have picklists for certain fields and if those fields have values that don't match the picklists and cause an error in the sync, there is no good way to pull that and make sure we're not missing leads to send over to sales.