Copilot in Excel performs data manipulation once and then refuses all subsequent requests

This is a very common issue with Copilot. With Copilot, sometimes you get direct action mode, sometimes you get guide mode. 

If you want Copilot to reliably execute your Excel operations, you should:

1. Convert your range into a Table (Ctrl+T) and give it a clear name (e.g., PermissionsTable).
2, Use consistent column headers (Permission1, Permission2, etc.).
3. Be explicit in your prompt, e.g.: “In PermissionsTable on the Medium sheet, sort each row’s PermissionName columns alphabetically. Please apply the changes, not just give me instructions.”
4, Stay in the same Copilot session when iterating.

Hope this will help you.