Microsoft 365 Copilot is only to use in the context of apps within Microsoft 365, such as Word, PowerPoint, Outlook, Teams, Excel. For ADF pipelines you should use Copilot for Data Factory. I believe is currently in preview and is expected to be available for all customers by the end of March 2024. https://learn.microsoft.com/en-us/fabric/get-started/copilot-fabric-data-factory
