2882461 - Error: "ORA-01400: cannot insert NULL"-SAP Data Services

• Job runs into an error "ORA-01400: cannot insert NULL" on mapped columns.
• Error: "Execution of <Regular Load Operations> for target <> failed. Possible causes: (1) Error in the SQL syntax; (2) Databaseconnection is broken; (3) Database related errors such as transaction log is full, etc.; (4) The user defined in the datastore has insufficient privileges to execute the SQL. If the error is for preload or postload operation, or if it is for regular load operation and load triggers are defined, check the SQL. Otherwise, for (3) and (4), contact your local DBA."

• SAP Data Services 4.2 
• Windows Server 2016
• Oracle

DS, BODS, BODI, jobs, issue, run error, ORA, DB, database, true, false, Win, SQL, bulk loader, load , KBA , EIM-DS-EXE , Job Execution , Problem