How to bulk‑upload a contact file to add numbers to the opt‑out list in CXT
1. Select ‘Send Messages’ on the left‑hand side of the CXT menu, then click ‘Opt Outs’.
2. Under the ‘Import a file of contacts’ heading, click ‘Import Opt‑Out Contacts’.
3. Browse your files and upload the appropriate CSV file containing the numbers you want to opt out.
Note: The file must be in .csv format, include one valid phone number per row, and be