I created a new company on the Admin console and want my new Netsuite Company to connect. I have tested the Account number and license key and entered my credentials but the company code box is missing from the screen and I am not connected.
In Netsuite you have to use the internal ID of the company as the company code on the admin console. If you created a company but did not use the internal ID this will need to be changed by support to match Netsuite. You can see the internal ID under Setup>Company>Subsiduaries.
Make sure the company is set to use Avatax as the default tax code.