The user is seeing a the below error message on their invoice after attempting to publish, and the invoice's VAT field is blank.
Couldn't find TaxRate.
Non-VAT registered companies.
This error would be caused by you not having any VAT codes set in your Integrate tab for this company that your invoices can default to.
To clear the error, please do the following:
Navigate to the Integrate page, located on the left hand side of your company homepage.
Ensure these VAT codes are set in the dropdown menus, and click Save.
Unpublish and republish the affected invoices.
If the error persists:
Disconnect your company's integration.
Go ahead and reconnect the company.
Republish the affected invoices. Give them a couple of moments to clear the error and successfully publish.
More information on what setting your company as non-VAT registered on AutoEntry means can be found here.