The Sender ID is the name of the sender of the SMS. It is what will allow customers to identify the company and personalize their SMS. It is a sequence of alphanumeric characters limited to 11 characters (including spaces).
Whatsapp distinguishes between company-initiated and user-initiated conversations. Sending messages to end users without opt-in can result in users blocking your company and suspending your WhatsApp Business account
To send a WhatsApp message to someone, you must first receive opt-in permission confirming that the person agrees to receive WhatsApp messages from you. The opt-in must
(a) clearly state that the person agrees to receive messages from you on WhatsApp and
(b) clearly state your company name.
The following methods can be used to get users to opt in. - SMS - Website - WhatsApp conversation - By phone (via an interactive voice server process) - In person or in writing (customers can sign a paper consent document)
An API is a software interface that makes data or features of an existing application available for other applications to use. Example: a delivery company uses our API integrated into its application to send delivery notifications to its customers. Example : a delivery company uses our API integrated into its application to send delivery notifications to its customers.