SSAS Tabular Model has been changed to AtScale model automatically

[gayatrisr]

I'm unable to use Power BI reports in service. I get the error - This report couldn't access the data source. Contact the author to have it fixed. I verified the data source and found out that the model has been changed for couple of reports from SSAS Tabular project to AtScale model. How do I fix this. Why has this happened. I can see that this change has happened to couple of reports that had new changes made to it. The older report which has not been published recently is still referring to the same model and is working fine. Please guide.

[3CloudThomas]

I do not know the answer to that. Did someone at your company make this change? Or is it a thrid party source to your report?

[3CloudThomas]

AtScale is a tthrid-party tools that replaces SSAS and can convert a model to AtScale. Someone had to intentially do this at the source. You need to find or contact the person\group who made the change

[gayatrisr]

Is there a way to change it back to SSAS? I dont think anyone will be admitting this mistake.