Spotfire: SharePoint Connector fails with error "The request to the Microsoft Graph API failed to get CSV Data for file from SharePoint"

Description:

When using Spotfire Sharepoint Custom Connector to access CSV files from SharePoint Online, users may encounter authentication failures with error messages indicating "The request to the Microsoft Graph API failed" followed by "accessDenied. There has been an error authenticating the request." This typically occurs when using custom SharePoint connector:

The execution of the job failed, server error: Task 1 'Open Analysis from Library' failed with: Spotfire.Dxp.Framework.Library.LibraryException: Import failed ---> Spotfire.Dxp.Data.Exceptions.ImportException: The request to the Microsoft Graph API failed.  Failed to get CSV Data for file from SharePoint 

Failed to get CSV Data for file from SharePoint: accessDenied There has been an error authenticating the request.

Root Cause:

The error is commonly associated with the use of custom Spotfire Custom SharePoint Online connector, which is not officially supported by Spotfire Support or Revvity Signals Support. Authentication issues can arise due to expired tokens, insufficient permissions, or configuration problems within the custom connector.

Solution:
1. Verify that you are using a Custom SharePoint Online connector (not a native Spotfire connector)
2. If using a custom connector, note that these are not supported through official Spotfire support channels
3. Post the issue to the Spotfire Community Forums at https://community.spotfire.com/forums/forum/18-spotfire 
4. Add the "Data Connectivity" tag to ensure proper routing to the appropriate support team
5. Include relevant error logs and connector configuration details in the forum post

Important Note:

Custom connectors, including Custom SharePoint Online Files connector, are community-supported tools and issues must be resolved through Spotfire Community Forums rather than official technical support channels.