@Valiant Thanks for the reply. I sort of managed to bash it to make it somewhat workable in the end. I'll share in a while...
After a week of not working, this seems to have rectified itself - I believe that the issue was on LinkedIN side.in LinkedIn Connector issue Comment by Adam480925 February 2017
Never Mind solved ETL -> Group by Client, Region With Minimum Date gives me a first inquiry resultin First Occurrence of Combination Comment by Adam480925 January 2017