Here we would like to draw your attention to OMH0 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).OMH0 is a transaction code used for Interface to Activity Allocation in SAP.

It comes under the package ML.
Transaction OMH0 technical data table
| Tcode | OMH0 |
| Purpose | Interface to Activity Allocation |
| Module | MM |
| Component | MM-SRV |
| SAP Package | ML |
| Type | P |