We have a customer that is migrating from Azure Analysis Services to the Power BI Premium/XMLA endpoint. While the custom measure syntax is still the same (DAX), all custom measures needs to be recreated and mapped to the tables/colums/measures in the ‘Power BI premium’ endpoint of the custom measure. This can be a lot of work, especially when it are a lot of custom measures. We’ve created a ticket for this as well (#29795).
It would be way better if the DAX syntax can be entered in the custom measure window in a ‘DAX’ endpoint that will be mapped/deployed to both Tabular (on prem and Azure) and Power BI/XMLA endpoints.
