When the SharePoint Content Connector service attempts to upload a batch of documents, the following error may be logged to the verification report:
An exception occurred that prevented the batch from being processed: System.Net.WebException: The request failed with HTTP status 401: Unauthorized.
This error indicates that the account running the Content Connector service has insufficient permissions.
Ensure the service is running as a domain user who has SharePoint Contribute permissions to the lists and libraries that the Content Connector needs to update. If the OnBase Web Server is not configured for anonymous access, then this user must also be a valid account that the IIS server running the Web Server can authenticate.
For more information about the Content Connector service, see Installing the Content Connector Service (SharePoint 2019).