Previously, PowerExchange set non-nullable fields to nullable for all SAP HANA source tables. In PowerExchange 10.5.2, tables registered with the Full Audit option allow non-nullable fields. For tables registered without Full Audit, PowerExchange continues to set all fields that are not primary keys to nullable. Since there is no before image of the source table without Full Audit, delete processing requires that each non-primary-key field can be null.