Here we would like to draw your attention to OKZ4 transaction code in SAP. As we know it is being used in the SAP CO-PC (Product Cost Controlling in CO) component which is coming under CO module (Controlling).OKZ4 is a transaction code used for Routing Control Key in SAP.
It comes under the package KK0C.
Transaction OKZ4 technical data table
| Tcode | OKZ4 |
| Purpose | Routing Control Key |
| Module | CO |
| Component | CO-PC |
| SAP Package | KK0C |
| Type | P |