Here we would like to draw your attention to CNV_CHECK transaction code in SAP. As we know it is being used in the SAP CA-GTF (General Application Functions in CA) component which is coming under CA module (Cross Application).CNV_CHECK is a transaction code used for Check Conversion Package in SAP.
It comes under the package CNV_BASIS.
Transaction CNV_CHECK technical data table
|Purpose||Check Conversion Package|