QBO (Quickbooks Online) & SalesForce help

Looking for someone who is an expert in QBO & SalesForce Essentials: Want to see if there is a way be can eliminate double entry. We want to enter a new client or vendor in ONCE in QBO OR SF and then that info goes into the other. exmp: we enter Bob the Builder in QBO under new clients and it goes into sales force as the sale to keep everything in sync. Also want to see if we can do this with correct Essentials version of QBO and not have to upgrade to the advanced.