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There are two common reasons to send a campaign again to only the contacts who didn’t get it the first time:
  • You’ve added new subscribers via a form, integration or the API since the original send, and want to reach them too.
  • You stopped a campaign mid-send. Loops doesn’t automatically resume a stopped campaign, so use this flow to send to everyone who wasn’t reached.
In both cases, the steps are the same: duplicate the campaign and filter the audience to exclude anyone who was already sent the original.

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Duplicate the campaign

The first step is to duplicate the campaign so that you can send it out again. To do this, go to the Campaigns page and click on the ••• menu icon, then select Duplicate. Duplicating emails

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Send to your new contacts

When you’re ready to send the email, it’s important that it only gets sent to contacts that haven’t been sent it already. To do this, on the Audience page of the sending flow, select “Not Sent” from the first dropdown and then the original campaign from the third dropdown. Filter audience by sent campaign This will update the total contacts and the table below, which will show contacts that were not sent the original campaign. Check that everything looks OK and continue sending the email.
Last modified on September 28, 2026