Here we would like to draw your attention to OMV1 transaction code in SAP. As we know it is being used in the SAP MM-SRV (External Services in MM) component which is coming under MM module (Material Management).OMV1 is a transaction code used for Service Category in SAP.
It comes under the package MASB.
Transaction OMV1 technical data table
| Tcode | OMV1 |
| Purpose | Service Category |
| Module | MM |
| Component | MM-SRV |
| SAP Package | MASB |
| Type | P |