Hey Vincent, Sorry for the delay! It looks like the campaign ID field (see screenshot below) is empty and that may be the reason for the error. Can you add this to your Smart Lead column and run a few rows?
Hey Vincent, I ran Lookup with the master emails in your table. Looks like your leads did not get sent because they already exist in your campaign. I've setup a Lookup column and a checkbox to verify the result sfor you. Please let me know if this helps! Thank youβ¨