Content which decides the category of SMS apart from who is sending SMS. For example, a registered Bank is eligible to send Transactional SMS as per TRAI, however they can can not send any promotional content to their registered customers through Transactional channel.
Example: The following example illustrates the two different type of SMS sent by a bank
Promotional: Now get 9.5% interest on all your fixed deposit. Regards. XYZ Bank.
Sender ID Not Available Only numeric sender id ie.g LM:123456
Delivery Time : 9 AM to 9 PM
You cannot send Transactional SMS to DND (Do not disturb) numbers
Transactional: Dear customer your account balance is Rs 55555. Regards. Xyz Bank.
Sender ID Available Exactly 6 Character alpha sender id ie.g LM:ICICIB
Delivery Time : 24 Hours
You can send Transactional SMS to DND (Do not disturb) numbers