A connection corresponding to the embedded PowerPivot data was not found in the Excel workbook
This error is another in a series of common errors that users can hit during seemingly normal scenarios that might be a little bit difficult to interpret at first. We actually did work to try and make the error descriptive, but to the new user, it may still be cryptic. This error occurs when you chose the “Manage PowerPivot Data Refresh” option of an xlsx file which does not contain any embedded PowerPivot data.
Tags: sharepoint, refresh, error