SharePoint eDiscovery Export Download Fails with Error

Symptom

Downloading results from a SharePoint site query fails partly through the export with the following error: “The content can no longer be saved to the export location. Please ensure that it is available and has sufficient space.”

Cause

This problem was caused by an authentication context switch when attempting to download an InfoPath Form. In this case the Download Manager (ddmanager.exe) needed a different set of credentials, when downloading the form XML file and failed during the process.

Below is the data that demonstrates this issue.

The following is from Fiddler that displays a GET request for file “Mobile%20Phone.xml”, then a 302 redirect to the FormServer location.

As a result of connecting to the Form Server, a new authentication attempt was made to the InfoPath Service and a new cookie was set.

Example:

After this occurred, the Process Query failed with a 401, authentication was required, and the Download Manager subsequently stopped with error, “The Content can no longer be saved to the export location. Please ensure that it is available and has sufficient space“.

As a result of this failure, inside this InfoPath Form, we are handling an error stating that cross-domain access is required to use this Form.

Example:

As stated this is error handling in the form, but does hint that a different authentication policy is required.

With that said, we found the following error inside the download manager error log.

Resolution

To workaround this issue, we excluded the connection to the FormServer from Download Manager by adding new SourceFilter within the Download Manager Configuration.

Example:

More Information

eDiscovery in SharePoint

https://dev.office.com/sharepoint/docs/general-development/ediscovery-in-sharepoint

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