# Channel Prerequisites

Transform customer experience without adding any infrastructure using programmable messaging APIs for SMS, voice, Email, and WhatsApp channels. The following table lists the channel-wise prerequisites for using APIs

| Channel  | Prerequisites                                                                                                                                                                                                                                                                                                                                                                 |
| -------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| SMS      | <ul><li>Login credentials to access the platform</li><li>Details to be used to test the API.</li><li>Credits for scheduling the SMS campaign.</li><li>Sender ID from which SMS campaign is to be scheduled.</li><li>Mobile numbers to which SMS campaign is to be scheduled.</li><li>Message text that is to be sent to mobile numbers as SMS through the campaign.</li></ul> |
| Voice    | <ul><li>Login credentials to access the platform</li><li>Details to be used to test the API.</li><li>Sender ID from which voice campaign is to be scheduled.</li><li>Mobile numbers to which voice campaign is to be scheduled.</li><li>Message that is to be scheduled as the voice campaign.</li></ul>                                                                      |
| Email    | <ul><li>Login credentials to access the platform</li><li>Details to be used to test the API.</li><li>Credits for scheduling the email campaign.</li><li>Sender ID from which email campaign is to be scheduled.</li><li>Email addresses to which email campaign is to be scheduled.</li><li>Message text that is to be sent through the email campaign.</li></ul>             |
| WhatsApp | <ul><li>Login credentials to access the platform</li><li>Details to be used to test the API.</li><li>Credits for using WhatsApp messaging services.</li><li>WhatsApp business ID and verified profile.</li><li>Opt-In WhatsApp mobile numbers for message exchange</li><li>Message templates for interactions</li></ul>                                                       |