SSIS - manaing data integrity when importing Sharepoint data

Hello

I setup this package to import data from a Sharepoint list to a SQL Server data table. The primary key of my SQL table is mapped to the Title column of my Sharepoint list. 

There is a possibility that duplicate values will be entered in the Title field of the Sharepoint list. So when importing data into my table via SSIS, my package always error-out when there it comes across duplicate values. 

Please advice how you others have managed data integrity when importing from a Sharepoint list with the Title column being mapped to the primary key of a table.

Thank you in all in advance

PS. I just started out learning SSIS