Here we would like to draw your attention to OIO3 transaction code in SAP. As we know it is being used in the SAP PM (Plant Maintenance) module. OIO3 is a transaction code used for Maintenance Activity Types in SAP.
It comes under the package INSC.
Transaction OIO3 technical data table
| Tcode | OIO3 |
| Purpose | Maintenance Activity Types |
| Module | PM |
| SAP Package | INSC |
| Type | P |