In case you want to send bulk SMS to predefined groups of recipients, use Cequens Send SMS to Groups API. The API will return to you the messages’ ID to track them later using Cequens Get Message Details by ID API.

Using Cequens Send SMS to Groups API is quite simple. First, submit an HTTP Request with the group’s name, the message text, and other important parameters, and then receive a Response that includes the SMS IDs.