Here we would like to draw your attention to TRN_REG_APPL transaction code in SAP. As we know it is being used in the SAP CA-MDG (Master Data Governance in CA) component which is coming under CA module (Cross Application).TRN_REG_APPL is a transaction code used for Settings of Application in SAP.
It comes under the package FND_TRANS_REG_1.
Transaction TRN_REG_APPL technical data table
|Purpose||Settings of Application|