You are reviewing the Activity Logs in AvaTax for Concur Invoice and see an error "The remote server returned an error: (403) Forbidden"
- This issue is related to Concur Access token.
Follow below steps to resolve the issue:
Login to Connector web application (https://avataxforconcur.com)
Go to 'Concur Account' tab
Re-enter valid Concur Username and Password details and Save.
- Recheck if tax is getting calculated
For more information, see Concur Invoice