Promotional vs Transactional SMS
Understanding the two SMS categories that determine routing, timing, and compliance in India and beyond.
In Plain English
Comparison Breakdown: Promotional vs Transactional SMS
Comparing options for Promotional vs Transactional SMS? Here is the simple truth: Understanding the two SMS categories that determine routing, timing, and compliance in India and beyond.
Architect Verdict: Send OTPs, alerts, and account updates as transactional messages on registered service routes for 24x7 delivery. Send marketing as promotional messages with proper opt-in, within permitted hours, and never disguise promotional content as transactional, which risks blocking and penalties.
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Direct Parameter Mapping
| Attribute | Promotional SMS | Transactional SMS |
|---|---|---|
| Purpose | Marketing, offers, promotions | OTPs, alerts, order and account updates |
| Recipient Consent | Requires opt-in; blocked for DND numbers | Allowed for registered service context |
| Delivery Timing | Restricted hours (e.g. daytime windows) | 24x7 for genuine transactional content |
| Sender ID | Often numeric or promotional headers | Registered alphabetic header for the entity |
| DLT Template | Registered promotional template | Registered transactional/service template |
Promotional Messages
Promotional SMS carries marketing content such as offers and discounts. It requires recipient opt-in, is blocked to numbers on the DND registry, and is typically restricted to permitted daytime hours. In India it must use a registered promotional content template on the DLT platform.
Transactional and Service Messages
Transactional SMS delivers information a user expects as part of a service, such as OTPs, banking alerts, and order updates. Genuine transactional messages can be delivered around the clock, including to DND numbers, but must match a registered template and header to avoid being filtered.
WebWorldMaker Architect Verdict
Send OTPs, alerts, and account updates as transactional messages on registered service routes for 24x7 delivery. Send marketing as promotional messages with proper opt-in, within permitted hours, and never disguise promotional content as transactional, which risks blocking and penalties.
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