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Tableau desktop connects to MS SQL Server shows "[Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Login failed for user 'domain\username'. Invalid username or password."

Publish Date: Feb 23, 2026
Description
When using Windows service account connect to MS SQL Server from Tableau Desktop, it shows incorrect password.
Error message:
"[Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Login failed for user 'domain\username'.
Invalid username or password."

Using the same credentials can connect to the same database from Power BI and excel. But can't connect from ODBC admin DSN.

The Authentication method in Tableau Desktop is "Use a specific username and password". And the user name is domain/username
Resolution
Run Tableau Desktop with MS SQL Server service account (Press shift and right click the Tableau Desktop, run as a different user, fill in the service account and password).After launching Tableau Desktop, change Authentication method changes to "Use Windows Authentication" rather than "Use a specific username and password." 
Knowledge Article Number

001497784

 
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Salesforce Help | Article