Unable to schedule refresh through Power BI Service

Hello OS Community,

We are building Power BI dashboards using the new Power BI connector for OneStream. We can successfully retrieve OneStream data through the connector in Power BI Desktop. However, after publishing the .pbix file to the Power BI Service, we are unable to refresh or schedule a refresh from the service. We reached out to Microsoft, and they indicated that this is a third-party connector (Power Query OneStream connector - Power Query | Microsoft Learn) and redirected us back to OneStream. We also contacted OneStream support but have not been able to resolve the issue.

I’m curious if anyone has had a similar experience and found a resolution. Below is the error we received:

"Unable to update connection credentials. Failed to login with OAuth token, please update the credential manually and retry.

Details: [DataSource.Error] Unable to connect to the remote server Please have this information handy if you choose to create a support ticket.

Session Id: 0bd10fb7-cdd7-4519-8d3c-244e692fcc4b
RequestId: 1faeb721-27d0-4928-aab3-539aeea6d2fd
Cluster URI: https://api.powerbi.com
Status code: 400
Time: Thu Nov 20 2025 12:42:05 GMT-0700 (Mountain Standard Time)"