Here we would like to draw your attention to OY21 transaction code in SAP. As we know it is being used in the SAP BC-SRV (Basis Services / Communication Interfaces in Basis) component which is coming under BC module (BASIS).OY21 is a transaction code used for User profiles Customizing in SAP.
It comes under the package SBSRVC.
Transaction OY21 technical data table
| Tcode | OY21 |
| Purpose | User profiles Customizing |
| Module | BC |
| Component | BC-SRV |
| SAP Package | SBSRVC |
| Type | P |