So here is a list of things that you need to do when thinking and about to make schema changes:

  1. Understand the Active Directory Schema Terminology
  2. Then read How the Active Directory Schema Works
  3. Once you have that understanding you then go through our Checklist before extending the schema
  4. And make sure you know how to extend the schema by referencing our Extending the Schema document.

Additional information about the schema can be found here

Happy Extending!

Carlos Magalhaes