Here we would like to draw your attention to OBA5 transaction code in SAP. As we know it is being used in the SAP CA-BK (Bank in CA) component which is coming under CA module (Cross Application).OBA5 is a transaction code used for Change Message Control in SAP.
It comes under the package BF.
Transaction OBA5 technical data table
| Tcode | OBA5 |
| Purpose | Change Message Control |
| Module | CA |
| Component | CA-BK |
| SAP Package | BF |
| Type | P |