https://community.qlik.com/t5/Data-Quality/How-to-change-composite-key-in-tmap-at-runtime/m-p/2199195#M343 Hi, <BR />It's not possible to change column at run time. You can monitor data processing when running a Job in the Integration perspective of Talend Studio. <BR />Please refer to page: <A href="https://help.talend.com/search/all?query=How+to+run+a+Job+in+Traces+Debug+mode" target="_blank" rel="nofollow noopener noreferrer">TalendHelpCenter:Traces Debug mode</A> <BR />Best regards <BR />Sabrina Sun, 31 Jan 2016 15:48:38 GMT Anonymous 2016-01-31T15:48:38Z https://community.qlik.com/t5/Data-Quality/How-to-change-composite-key-in-tmap-at-runtime/m-p/2199194#M342 Hi, <BR />I have scenario where I have to use composite key of 6 columns but in lookup any of these column value can be null so at run time I have to check which column has null value.... and depending on that I have to remove that particular column/s from key Sat, 16 Nov 2024 10:51:21 GMT https://community.qlik.com/t5/Data-Quality/How-to-change-composite-key-in-tmap-at-runtime/m-p/2199194#M342 Anonymous 2024-11-16T10:51:21Z https://community.qlik.com/t5/Data-Quality/How-to-change-composite-key-in-tmap-at-runtime/m-p/2199195#M343 Hi, <BR />It's not possible to change column at run time. You can monitor data processing when running a Job in the Integration perspective of Talend Studio. <BR />Please refer to page: <A href="https://help.talend.com/search/all?query=How+to+run+a+Job+in+Traces+Debug+mode" target="_blank" rel="nofollow noopener noreferrer">TalendHelpCenter:Traces Debug mode</A> <BR />Best regards <BR />Sabrina Sun, 31 Jan 2016 15:48:38 GMT https://community.qlik.com/t5/Data-Quality/How-to-change-composite-key-in-tmap-at-runtime/m-p/2199195#M343 Anonymous 2016-01-31T15:48:38Z