If you need to remove a client from a marketing campaign for any reason, you can do so from the Marketing Campaigns Report.
Remove clients from a marketing campaign from the Marketing Campaigns Report
To remove a client from an existing scheduled campaign:
Go to the Marketing Campaigns Report by clicking on the App Drawer
then clicking on Reports > Marketing > Marketing Campaigns.Click on the name of the campaign you want to remove a client from. This will open a list of clients that the campaign will be sent to.
Find the client you would like to remove. If you know the client’s email address, you can enter it into the search bar to find them.
Under the Actions heading, click the Action button
and click Remove Recipient.On the confirmation popup, click Remove.