When the admin needs to upload the Product created to Quickbooks account he can navigate to Magneto Admin < Catalog
from there whichever Product entry admin requires can select and sync to QuickBooks account.

to sync the entry admin can make the selection of the entry and then from the Action drop-down he can click on “Sync to QuickBooks”

From the top header if the admin clicks on the Button “Sync Product to QuickBooks” so all the Products in the database are synced in a bunch.