Here we would like to draw your attention to OMJ1 transaction code in SAP. As we know it is being used in the SAP MM-IM (Inventory Management in MM) component which is coming under MM module (Material Management).OMJ1 is a transaction code used for Allow Negative Stocks in SAP.
It comes under the package MB0C.
Transaction OMJ1 technical data table
| Tcode | OMJ1 |
| Purpose | Allow Negative Stocks |
| Module | MM |
| Component | MM-IM |
| SAP Package | MB0C |
| Type | P |