To connect Vinosmith to QuickBooks Online, you first need to authorize the connection.
How to Authorize Vinosmith + QuickBooks Online for the 1st time
Click on My Account in the top-right.
On the left, click on Manage
Look on the left and locate the QuickBooks Online section; click on the link to Connect to QuickBooks Online.
On the next screen, click on the Connect to QuickBooks button.
Proceed by following the prompts and signing in to Intuit and entering your Intuit / Quickbooks Online credentials.
How to Re-Authorize Vinosmith + QuickBooks Online if instructed by Vinosmith Support
In some cases, Vinosmith Support may instruct you to re-authorize your connection. This can happen if the QuickBooks user who authorized the original connection is no longer active in QuickBooks/Intuit.
To re-authorize an existing connection, please follow these steps:
Click on My Account in the top-right.
On the left, click on Manage
On the left, locate the QuickBooks Online section, then click the Settings link.
On the next screen, look in the left for a link to Re-Authorize
Follow the prompts to re-authorize your connection.