To import items from QuickBooks Online, first it is best to set up a delimiter to put between an item code and description:
Then go into "Import from QuickBooks Online' tab, 'Items' sub tab and click 'Import Items'
To import the items follow the instructions
1. First select the items to import.
2. Then select the category at the bottom.
3. Click the 'Set Selected to" button.
4. The selected items should have a category selected in the second last column.
5. Click ok.
The import goes on in the background and it may take a few minutes if there are alot of items.