Hi @jmontlouis001 ,
When you import your Power BI Desktop file from OneDrive or SharePoint Online, you load data and model information into a dataset in Power BI. You'll want to refresh the dataset in the Power BI service because that's what your reports are based on. Because the data sources are external, you can manually refresh the dataset by using Refresh now or you can set up a refresh schedule by using scheduled refresh .
When you refresh the dataset, Power BI doesn't connect to the file on OneDrive or SharePoint Online to query for updated data. It uses information in the dataset to connect directly to the data sources and query for updated data. Then, it loads that data into the dataset. This refreshed data in the dataset isn't synchronized back to the file on OneDrive or SharePoint Online.
For more information，you can refer to：Refresh a dataset stored on OneDrive or SharePoint Online
A similar thread for your reference：Automatically update Power BI from Sharepoint
Hope it helps,
Community Support Team _ Caitlyn
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