Dear Office 365 Team,
I set up a data connection to a SharePoint list using this guide:
If I press "Refresh All Connections" inside my Excel sheet an error message appears:
Error: A connection could not be made to the data source with the DataSourceID of '68d644a7-eb58-4ccd-ad0c-d15bb1f19216', Name of 'PoC'.
An error occurred while processing table 'PoC'.
The current operation was cancelled because another operation in the transaction failed."
I also tried the following guide: http://www.sptechcon.com/news/sharepoint-dashboard-excel which ended up in the same problem.
Please help me :-).