The account sync will work once you have made a data pull from QuickBooks Desktop that includes your Customer accounts.
This will attempt to find any accounts that exist in Orderwerks based on the QuickBooks ID. This currently only will create accounts, not update accounts data. If the account isn’t found by the QuickBooks ID, then the account will be created.
Note: If you already have accounts setup in Orderwerks you would likely want to use the mapper first in order to connect Orderwerks with their specific QuickBooks Desktop Entries. This will avoid having duplicate entries.