Incremental refresh option grayed out. The data I am uploading has date and time I have always published data source from desktop to tableau cloud. Data> Data source name>publish to server. I am trying to schedule an incremental refresh cont..

I can only do full refresh and no incremental refresh.

I tried looking into the documents couldn't find something easy to understand.

If I extract the data it creates a new .hyper file. Do I upload that. I am confused.

Will it then also refresh the new data which comes in.

Please suggest Thanks