When you want to apply a code to a task or resource, you use outline codes.
When you want to apply a code to a project, task, or resource and you want to apply the code consistently across all projects in the enterprise, you use enterprise outline codes.
Project provides 30 enterprise outline codes for use with projects, tasks, and resources. These are named Enterprise Project Outline Code 1, 2, 3,and so on; Enterprise Task Outline Code 1, 2, 3, and so on; and Enterprise Resource Outline Code 1, 2, 3,…29.
In addition, enterprise resources have a predefined outline code called the Resource Breakdown Structure (RBS) code. The RBS code can be any code that differentiates resources, but it should ...