How to disconnect a QuickBooks vendor.
Go to the left-hand side menu and click on the Management Tab.
Select Costs in the dropdown options.
Any vendor that has been synced to QBO with an unpaid cost will show with a green dot in the QBO Vendor column.
Click the arrow at the end of the row of the vendor you want to disconnect.
Select Unlink Vendor.
There will be a pop-up to confirm you want to unlink this vendor.
Click Confirm.