title: How to create a system user (rep:SystemUser) in AEM 6.1?
body: <p>On AEM 6.1.. I am trying to create a System User (rep:SystemUser). Can anyone help me?</p>
  
  <p>I need this system-user to map to a service in OSGI that i want to use to Write some data to aem content. </p>
  
  <p>I can see the "system users" in CRX at this location: /home/users/system </p>
  
  <p>I tried to create a new node to create a new-user with "jcr:primaryType rep:SystemUser", and defined the rep:PrincipalName, but that property is not being set as "Protected=true", by default is is taking as "Protected = false" and so saving the node is failing with that message.</p>
  
  <p>Reference: <a href="http://aemfaq.blogspot.com/2015/01/aem6-default-groups-users-without.html" rel="nofollow">http://aemfaq.blogspot.com/2015/01/aem6-default-groups-users-without.html</a></p>