Power BI Service auto changing Data Source Credential settings

[sewai]

It seems the PBI Service is changing one of my dataflows credential settings automatically from my setting of Organisational to Private on a weekly basis. This causes the dataflow to fail refreshing until I reset the credential setting back to Organisational.

Any ideas what the cause of this can be? 

[v-yingjl]

Hi @sewai ,

When your dataflow has multiple data sources, try to enable this feature in Options to allow combining data sources:

Refer:

1. Power BI refresh error: Unable to combine data and workarounds 
2. Power BI Data Privacy Levels And Cloud /Web-Based Data Sources Or Dataflows 

Best Regards,
Community Support Team _ Yingjie Li