Getting Existing Customer ListIDs from FMBooks

[hollyheadhunter]

Hi - Is anyone using Filemaker, QuickBooks and FMBooksConnector that would help? I am now able to "push" Filemaker records (Invoices, Customers, Purchase Orders, etc) to QuickBooks. But how can I find the ListID for Customers and Vendors that already existed in QuickBooks? They do not export.