PowerBI Online service not refreshing OData feed

Hi,

I have setup a report using PowerBI Desktop with the OData Feed type datasource from a Sharepoint site.

I was able to authenticate successfully using my credentials on the desktop, and even successfully published to the Online service too.

However, after logging in to the Online service and trying to setup the scheduled refresh option from there, I noticed an error message saying "Invalid Credentials".

On trying to update the credentials again, I chose the "oAuth2" method for the 'Authentication method' where it does seem to pick up my credentials, but I eventually receive the below error message:

Failed to update data source credentials.
Activity ID: 31f5e489-c9dc-f1fa-bfad-adf86221ab7a
Request ID: 109090e0-bbf6-d28c-3ef4-113af8c75ca2
Status code: 500
Time: Thu Nov 10 2016 17:27:52 GMT+1100 (AUS Eastern Daylight Time)
Version: 13.0.1700.581
Cluster URI: https://wabi-south-east-asia-redirect.analysis.windows.net

Could you please assist in resolving this issue?
I would really like to setup the refresh, rather than me manually refreshing the report through the Desktop client and publishing it to the Online service every day!

Thanks in advance!