You may refresh the dataflow, connect the dataflow from Power BI Desktop and click 'Refresh' in Power BI Desktop. Before Refresh:
Most dataflows reside in the Power BI service tenant. However, Power BI Desktop users cannot access dataflows that are stored in Azure Data Lake Storage Gen2 account, unless they are the owner of the dataflow, or they have been explicitly authorized to the dataflow’s CDM folder. To resolve this issue, the user must be granted reader permissions to the CDM Folder and its files.
For further information, I'd like to suggest you refer to the document .
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