Standard Naming Procedure for Information System Objects 
Generally speaking, information system objects are assigned a name beginning with a number. The SAP system reserves the following numbers for the individual CO application components.
0 | For SAP internal use only |
1 | Cost Center Accounting |
2 | LIS |
3 | LIS |
4 | FI-LC |
5 | Reconciliation Ledger |
6 | Overhead Orders and Project Management |
7 | Product Cost Controlling |
8 | Profit Center Accounting |
9 | Activity-Based Costing |
You can establish your own naming conventions for object names that do not begin with a numeral.