Here we would like to draw your attention to OOSU transaction code in SAP. As we know it is being used in the SAP BC-BMT (Business Management in Basis) component which is coming under BC module (BASIS).OOSU is a transaction code used for Subtypes in SAP.
It comes under the package SP00.
Transaction OOSU technical data table
| Tcode | OOSU |
| Purpose | Subtypes |
| Module | BC |
| Component | BC-BMT |
| SAP Package | SP00 |
| Type | P |