Here we would like to draw your attention to OIO4 transaction code in SAP. As we know it is being used in the SAP PM (Plant Maintenance) module. OIO4 is a transaction code used for Default MAT by Order Type in SAP.
It comes under the package INSC.
Transaction OIO4 technical data table
| Tcode | OIO4 |
| Purpose | Default MAT by Order Type |
| Module | PM |
| SAP Package | INSC |
| Type | P |