Problem: Initially we define a Dataset and created some Reports and import the PBIX file at Power BI Cloud Service and later if we have a requirement of Changing the Table Schema / Adding new tables to the same Dataset using Tabular Object Model API, We will need to add / Update the reports for the new schema, But seems not possible using any Rest API / Tabular Object Model API Solution: Importing the updated PBIX to Power BI Service with group id and Dataset ID and power bi needs to identify the diff between existing Dataset/Reports at power bi and the Dataset/Reports from PBIX and perform the update operations, to be done as admin API