Invoice numbers and QBO

Am I the only person having problems with invoices not syncing to Quickbooks due to duplicate invoice numbers? Our old software allowed a job prefix that would allow for unique invoice numbers per customer. I've tried using the assigned job number plus a digit for the invoice number but even that returned a duplicate number in QBO. Jobber doesn't appear to allow anything but numbers -- no hyphen, period, etc. How are you overcoming this?