Sender ID is a set of characters that represent the identity of a sender. as an example, once you receive a regular SMS from an acquaintance, their name (as stored in your contacts) is displayed as a Sender. Similarly, once a business sends an SMS to its customers, a numeric or alphabetic set of characters represents the corporate or brand.
Sender ID for Promotional SMS is numeric and is determined from the operator. as an example 525222
Sender ID for Transactional SMS is six alphabetic characters in India. For example: PROMOT, PMKART. For other countries, sender ID format could vary according to the rules of a selected country.
