When importing leads into the sending tool, make sure the following settings are shown and this shouldn’t happen.If it’s a new campaign with no duplicates you don’t have to select the bottom toggle.Related ArticlesWhy You DO NOT Need To Verify ListKit LeadsHow do I add more leads to my campaign?Setting Up Automated Lead Exports with ListKit WorkflowsHow Do I Add More Leads To My Campaign?Why Are Less Leads In The Sending Tool vs ListKit?