How to remove the leads from the campaign?
You can remove leads from the campaign whenever required. To remove a lead, select the checkbox available in the leads list. After selecting the checkbox, a popup will appear at the bottom of the screen.

Click on the Remove Lead option to remove the selected lead from the campaign. Leads can be removed from a running campaign only when they are in the Waiting state. If the lead is already processing an action or has completed the workflow, it cannot be removed from the campaign.