By default, Apex exception emails are sent to Conga so that we can monitor Apex quality issues. 

You can change a custom setting to deactivate this feature. 

To deactivate Apex exception notifications

  1. Access Orchestrate Setup by clicking the gray gear icon at the top right of your Orchestrate home screen.
  2. In the PLATFORM TOOLS section of the left navbar, expand Custom Code and select Custom Settings.
  3. Locate the Don't Send Exception Email to Conga setting and select its adjacent Edit hypertext.
  4. Under the General Options heading, change the Default Value toggle from Unchecked to Checked.