CSV File Format
An SMS Broadcast begins with creating a list of destination numbers and messages to send. The list should be stored in a standard CSV file then uploaded to the SMS Broadcast System via SFTP.
Saving a CSV File
There are a number of CSV file encoding available when saving a file. The Broadcast File must be saved in CSV (Comma delimited) (.csv) format. Byte-order-mark (BOM) encoding is not supported.
Maximum File Size
The maximum standard file size is 500,000 line items (rows in the CSV file) for the production SMS Broadcast system.