Open application "Campaigns & Segmentation".
Click on "SMS".
Select "Audiences".
Click on "Customer ID file upload".
Using this feature, you can send the campaign to customers/audience that are not included in CareCloud database. Click on "Select a file" and upload a file in CSV format with your contacts.
You can then name your audience, add a description or Create a comparison group.
Click on "Create an Audience" to finish it.