Power BI Refresh Error:
251006

What does this error mean?

The Python connector is using password-based authentication but no password was provided. This error occurs when the password parameter is omitted or empty for a connection that requires it.

Common causes

• 1The password parameter was omitted from the connect() call while using default (password) authentication
• 2Environment variable supplying the password is not set or empty
• 3The password was accidentally set to None in the application configuration
• 4Secrets manager or vault returning an empty value for the password key
• 5Using password auth instead of the intended key-pair auth — missing both authenticator and private_key

How to fix it

1. 1Add password='<password>' to the connect() call, or source it from a secure env var.
2. 2Verify the env var: printenv SNOWFLAKE_PASSWORD (use a secure method — avoid echoing passwords in logs).
3. 3If the intent is to use key-pair auth, add authenticator='snowflake_jwt' and private_key instead of password.
4. 4Rotate secrets in the vault and ensure the pipeline re-reads the updated value.
5. 5For local development, use a .env file with python-dotenv and confirm it is loaded before connect().

Frequently asked questions

Other configuration errors