Here we would like to draw your attention to DNO_CUST01 transaction code in SAP. As we know it is being used in the SAP CA-NO (Messages in CA) component which is coming under CA module (Cross Application).DNO_CUST01 is a transaction code used for Settings for Notification Type in SAP.
It comes under the package DNO.
Transaction DNO_CUST01 technical data table
| Tcode | DNO_CUST01 |
| Purpose | Settings for Notification Type |
| Module | CA |
| Component | CA-NO |
| SAP Package | DNO |
| Type | P |