To add contacts to a campaign, you must upload a .xlsx, .txt, or .csv file containing the recipients' information. Add a column for every variable you want to populate in your campaign's message. A column containing the recipients' MSISDN (phone number) is required. All other columns are optional and depend on the information you need in the campaign you plan to send.

An example is shown below. You can also read more in the Broadcast Messenger User Guide.

Note:

• Phone numbers must be added in international format, e.g., 12025248725 (USA) or 447481340516 (UK).

• Date format: YYYY-MM-DD

• Contacts must have opted in (i.e., provided consent) for you to send campaign messages to them.

• SMS does not currently support variables.