How do I resolve 'This document has used AvaTax services. Tax override cannot be applied'?

Overview

You are creating an Sales Order or Invoice but receive an error 'This document has used AvaTax services.  Tax override cannot be applied'.

Environment

AvaTax

Resolution

• Ensure the Ship To address or Location is not in an SST state.
• Ensure Nexus is enabled in AvaTax Update.

Next Steps 

Can I override the tax on a Streamlined Sales Tax State (SST)?