The OAuth authentication method isn't supported for this data source. Contact your admin.

Hi sonaliverma ,

When connecting to data sources and services that require authentication through OAuth or Azure Active Directory-based authentication, in certain cases where the service is configured correctly, you can use the built-in Web or OData connectors to authenticate and connect to data without requiring a service-specific or custom connector.

 

More details: Authentication with a data source - Power Query | Microsoft Learn

 

I have also found a similar post, please refer to it to see if it helps you.

powerbi - How to fix the message The OAuth authentication method isn't supported for this data source in Power BI? - Stack Overflow

 

If it still does not help, please provide more details.

 

Best Regards

Community Support Team _ Polly

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.