If you click on the CHROME WEB STORE Icon ,
If you click on the G Suite Icon ,
In the Jivrus Integra for Quickbooks , Please click on the Install button to Install the Add-on
Now, Go to Add-ons > Jivrus Integra For QuickBooks >Start option
User can also use Re-authorize option , when it is needed.
After clicking, Start option user can see Authorize with Quick Books Page
To Know more about Authorize with QuickBooks , clickhere