What are the purposes of the Excel and Visio Unattended Accounts? Both services are used in the farm. I am just interested in knowing why are there dedicated for these?

Do they set the application up or do they do something after?


Main reason to use these accounts is security, it protect against unauthorized access to the external data sources from client computers.

  • Unattended accounts are low-privilege domain account that are store in Secure store services and used to connect to external datasources.
  • this service account provide equal data access to all authorized users.
  • These accounts not running any application pool inside the SharePoint rather these are connecting the external data sources for Excel, Visio or performance point service.

SharePoint Server 2013 - The Unattended Service Account

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