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Avalara Help Center

Why am I receiving a user could not be authenticated error when trying to place orders to Avatax?


Whenever I try to send transaction data to Avatax through our accounting software I receive a user could not be authenticated error.


Avalara Avatax


  • Some integration actually use a specific user name to send transactions data to the admin console.
    • In this case be sure the user in integration settings has current credentials for logging into the admin console.
  • If your credentials list you account number instead of a user name, check your license key:


Note: It is best to set up a user role not specific to an actual person for this purpose as to avoid their leaving the company and deactivating their admin console from breaking your connection to the service.