Low severityauthentication
Power BI Error:
AADSTS50064
What does this error mean?
Microsoft Entra ID (Azure AD) could not validate the supplied username or password during sign-in.
Common causes
- 1Incorrect or mistyped password for the user or service account signing in
- 2Expired password — the account password has passed its Entra ID expiration policy and must be reset
- 3Account temporarily locked out after repeated failed sign-in attempts (smart lockout)
- 4Stored credentials on a Power BI data source, gateway connection, or ADF linked service are out of date after a password rotation
- 5Service account used by a refresh / pipeline has had its password rotated without updating the dependent connections
How to fix it
- 1Verify the exact account being used and try signing in manually at https://portal.azure.com — if that fails, the credential itself is the problem (not the app).
- 2Reset the password in Entra ID (Users → select user → Reset password) or have the user reset via https://passwordreset.microsoftonline.com if it has expired.
- 3If the account is locked, wait out the smart-lockout window (default ~1 minute, increasing with repeats) or have an admin unlock it via the Entra ID portal.
- 4Update the stored credentials everywhere they are reused: Power BI dataset → Settings → Data source credentials, on-premises data gateway connections, and ADF/Fabric linked services.
- 5For automated refreshes, prefer a service principal or managed identity over a user password to avoid recurrence after the next password rotation.