Why is my Sales Tax Item field blank in QuickBooks Online?

Overview

The Sales Tax Item field is blank and will not let me write a value in the field for AvaTax to work.

AvaTax for QuickBooks Online

Set up a new service in Products and Service.
- Instructions on how to create products and services can be found in the Intuit Help Center
When creating a new service enter Sales Tax in the Name field
Set the Income Account to your sales tax account (i.e. Sales Tax Payable)
Click Save and close
Ensure that the Sales Tax item is reference by AvaTax by going to Apps > My Apps
Click Action > Launch
On the AvaTax for QuickBooks Online landing page, click AvaTax connector settings
Ensure that the Sales Tax item is listed in the Sales Tax Item field. If not select it from the drop down.