How do I resolve "AVA_ConfigWizardSave (saveRecord)" error when trying to integrate with NetSuite?

Overview

You are trying to integrate AvaTax with NetSuite but receive the following error 

"An unexpected error occurred in a script running on this page. AVA_ConfigWizardSave (saveRecord) customscript_avaconfig_client."

Environment

NetSuite

NetSuite OneWorld 

Resolution

• In NetSuite, go to Avalara > Setup > Configure Avalara
  • Click 'Edit Credentials'
  • Remove all existing values from fields i.e Account ID, License Key, Username and Password.
    • Newer bundles of the connector do not contain Username and Password.
  • Next, re-enter all the values afresh.
  • Click the 'Validate' button and verify.
• If the issue persists, reset your Avalara License Key, repeat steps above then validate.