OAuth Authentication method isn't supported for this datasource error Power bI dataflow

[smjzahid]

I have a dataflow and I am using below connectors to connect to data. until this morning all scheduled and on demand refresh were working fine and now I am getting series of errors within my dataflow (roughly 11 erros in different Workspaces and all occuring in dataflow) 

I tried opening the dataflow and went through all the Applied steps in Power query IN PBI Service save and close the dataflow, no issues here, and then when I hit refresh it then fails the refresh throwing below shown error

ALl our datasource are in the cloud and we DO NOT use any gateway to connect, 

[robr]

Just had this with a brand new environment, uploading a PBIX and connecting for the first time.  The connection worked fine in PBI Desktop, but I got the error above when I tried to set the "Data Source credentials" in the App Service settings. I found that if you tick the "Skip test connection", then refresh your dataset, it actually worked.  Seems to be something wrong with the test connection:

[v-xinruzhu-msft]

Hi @smjzahid 

If your data source require authentication through OAuth or Azure Active Directory-based authentication and the URL is correct,  you can use the built-in Web or OData connectors to authenticate, you can refer to the following link:

Authentication with a data source - Power Query | Microsoft Learn

powerbi - How to fix the message The OAuth authentication method isn't supported for this data sourc...

Best Regards!

Yolo Zhu

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[smjzahid]

NOTE: I have also tried changing the all 4 privacy levels, (Private, Organizational, Public, None) but the same error crops up, any hint or solution how to solve this is highly appreciated, Thanks