Importing Previously Mailed Properties from Outside Pebble

To import a previously mailed campaign, go to Campaigns in your Pebble Dashboard and select Add Campaign

Fill out the details of the campaign and select Create Campaign

Import your data as if you were importing a mailing list.
Then, if you don't want to send mailers to this list through REI Pebble, you can  delete the campaign.
Any properties that are part of that campaign will still stay listed on the properties page.
Though deletion is an option, we always recommend that you don't delete campaigns. This is because REI Pebble has the ability to sort properties by specific imported campaign and it's a great identifier. Nevertheless, the choice is yours and as we mentioned above, deleting a campaign wont delete the properties you have listed on the properties page. 
To go ahead with deletion, go to the campaign and click Edit
Then click Delete in the top right corner.