When creating Enterprise Outline Codes, keep it simplestart with a few important outline codes.
Keep the bar high for new Enterprise Outline Codes.
Keep the size of lookup tables manageable.
Use the shared lookup tables wherever possible.
Use the "required" flag carefully.
Make sure that each outline code has a clear meaning for your EPM solution users. Keep the end product always in mind.
If you want to delete an Enterprise Outline Code, clean up all projects that might have used it first.
Minimize future changes to RBS. Many changes can create a significant administrative burden.