Step 1: Click on the Communication icon, Choose 'SMS'.

Step 2: Click on 'Bulk SMS' on the SMS tab.

Step 3: Click on 'Download' and fill the excel file with the required information and save it. After filling the information, Click on 'Choose File' and upload the same excel file.

Step 4: The numbers will be verified. You can write the message content in the 'Send' SMS.