Sender ID is name or number which goes on recipient’s mobile number when they receive SMS Text Message. Usually, Sender ID is a 6-character long alphanumeric string in India. For other countries, Sender ID may vary according to the rules of the particular country.
Sender ID of Promotional SMS is mostly numeric and fixed from the operator like TD-661644
Sender ID of Transactional SMS can be your company name or brand name of 6-character long like BP-MSGWOW
Note: MSGWOW allows you to create your own sender ID in both Promotional as well as in Transactional SMS.
Check the below image to see the example of Sender ID which is going on mobile number.