Explanation Delegation is supported for certain tabular data sources only. If a data source supports delegation, its connector documentation outlines that support. For example, these tabular data sources are the most popular, and they support delegation: Power Apps delegable functions and operations for Microsoft Dataverse Power Apps delegable functions and operations for SharePoint Power Apps delegable functions and operations for SQL Server Power Apps delegable functions and operations for Salesforce reason 1--> Azure data factory is not mentioned in MS documentation reason 2 --> Azure is not an actual data (questions asks for data sources) source but ETL a service for scale-out serverless data integration and data transformation. https://docs.microsoft.com/en-gb/powerapps/maker/canvas-apps/delegation-overview