Hi @Brianben ,
The maximum retention period for personal access tokens (PATs) in Databricks has indeed changed to 730 days (two years). Unfortunately, the exact effective date of this change is not specified in the official documentation available.
Regarding your Power BI reports that use access tokens for authentication, you are correct that you will need to update the access tokens once they expire. If you have 100 Power BI reports published on Power BI Service, you will need to update the access token for each report individually when the current tokens expire. This means making 100 changes for all reports.
To mitigate this, you might consider using OAuth tokens instead of PATs, as they offer greater security and convenience. Databricks recommends using OAuth access tokens, which can be managed more efficiently and securely. This could potentially reduce the administrative overhead associated with managing multiple PATs.
For more detailed guidance on managing and rotating tokens, you can refer to the Databricks documentation on personal access tokens and OAuth authentication.