Switch from Internal Model to SSAS Tabular

Hi all,

my issue is the following: I have a PBI report that has an internal data model reading from SQL DB. In the meanwhile the model is grown and we decided to migrate it to a SSAS Tabular model (identical to the original internal model).

Now I have the need to migrate my Power BI report to read from the Tabular model instead of the internal one. I don't have this option in the change datasource menu.

Can someone help me?

Thanks a lot!