Log into your platform
To add a suppression file look on the left hand side and select “Suppression”
3. Select “Suppression Lists”
4. Either click on the large box to look up your file to upload, or drag the file into the box to upload. (Note: The file must be in CSV format)
5. You can add a phone number manually by going to “Suppression” – “Add Number”.
6. Enter the phone number one line at a time and click the “Suppress” button.