Hello, @ccbags.
Let me provide some information about setting up the default sales account in QuickBooks.
The default account usually depends on how you set up Point of Sale in QuickBooks Online (QBO). You can either set the product and services as default sales account.
On the other hand, you can also contact with the POS provider on how to update the default account being used.
Let me know if you have any other questions, I'm just here available to help. Have a great day ahead!