Concepts referenced in this article, defined.
Run rigorous A/B tests and personalize every visit on Shopify or any storefront โ no engineers required.
SMS is the most-read marketing channel in India โ a 90%+ open rate makes every other channel look sluggish. But high open rates only matter if the message drives action. The gap between ecommerce brands that use SMS as a blunt promotional hammer (low CVR, high unsubscribes) and those that use it as a precision conversion tool (2โ8% CVR on triggered messages) comes down to compliance, segmentation, and copy quality.
Before strategy, you need to understand the regulatory and technical reality of SMS marketing in India.
TRAI's DLT (Distributed Ledger Technology) framework makes it mandatory for all commercial SMS senders in India to:
Template approval takes 24โ72 hours. Build your DLT compliance 2โ3 weeks before any campaign, not the night before.
| Type | When to Send | Time Restriction | Opt-Out |
|---|---|---|---|
| Transactional | Triggered by customer action | 24/7 allowed | Not required (but good practice) |
| Promotional | Marketing campaigns | 9 AM โ 9 PM only | Mandatory "Send STOP to [number]" |
| Service | Account/order updates | 24/7 allowed | Not required |
Use the correct header for each type โ misclassification is a compliance violation and can get your messages blocked at the carrier level.
WhatsApp Business API has eaten into traditional SMS marketing for many Indian D2C brands. WhatsApp can carry rich media (images, buttons), has similar open rates, and feels more modern. However, SMS has advantages:
The best approach: use SMS for transactional and simple promotional messages; use WhatsApp for rich content, cart recovery, and customer service.
1. Welcome Series (2โ3 messages) Triggered when a new customer makes their first purchase or opts in to your SMS list.
2. Cart Abandonment (1โ2 messages) Triggered 30โ60 minutes after cart abandonment.
If no conversion after 24 hours, a second message with a small incentive: "Still thinking? Your cart at [Brand] includes [Product]. Here's โน50 off to complete your order: [link]"
3. Reorder/Replenishment Triggered based on estimated product usage cycle.
4. Flash Sale Notifications 4โ8 hour sale window to create urgency.
5. Back in Stock Triggered when a previously sold-out item is restocked.
6. Win-Back For customers inactive 60โ90 days.
Broad SMS blasts to your entire list will convert at 0.5โ1%. Segmented, behaviorally triggered SMS converts at 3โ8%. Segment by:
Purchase history:
Recency:
Geographic (via pin code from Shopify orders):
SMS copy must work within 160 characters for single SMS rate, 306 for double. The tighter the better โ most receivers read on a notification preview, not the full message.
Principles:
Templates that work for Indian D2C:
| Scenario | Template (under 160 chars) |
|---|---|
| Flash sale | "Hi , : 40% off skincare ends 11:59PM. Shop: Reply STOP to opt out" |
| Cart recovery | "Hi , your cart at is waiting! Free shipping today: Reply STOP" |
| Restock | ": is back! You showed interest โ grab it now: " |
| Replenishment | "Hi , time to restock your ? Easy COD order: Reply STOP" |
| Win-back | "Hi , โน150 off your next order โ just for you. Valid 48hrs: Reply STOP" |
Unlike email or web A/B tests, SMS testing requires careful setup because you can't easily run 50/50 splits in real time without a sophisticated SMS platform. Test sequentially:
Test 1: Send time Send same message to matched list segments at 10 AM vs. 7 PM on the same day. Compare CTR and conversion rate over 24 hours.
Test 2: Offer framing "โน200 off" vs. "20% off" vs. "Free shipping" โ Indian D2C data typically shows rupee amounts outperform percentage discounts for orders under โน2,000.
Test 3: Urgency vs. no urgency "Valid for 48 hours" vs. no deadline. Urgency messaging typically lifts CTR by 15โ25% but only works if the offer is genuine.
Test 4: Message length Under 120 characters vs. 120โ160 characters. Shorter often wins โ test your audience.
| Metric | Benchmark | What It Means |
|---|---|---|
| Delivery rate | >95% | Low = DLT issue or bad number quality |
| Open/read rate | 85โ95% | SMS is almost always read |
| CTR | 5โ15% | Low = copy problem |
| Conversion rate | 2โ8% (triggered), 0.5โ2% (blast) | Link destination matters as much as the message |
| Unsubscribe rate | <0.5% per send | Higher = over-sending or irrelevant content |
Landing page optimization matters as much as the SMS itself. If your push notification sends 1,000 clicks to a slow-loading or mismatched landing page, you convert only a fraction of what you should. CustomFit.ai helps you A/B test the post-click experience without developer help.
Learn more: Marketing Channels Pillar | Push Notification Strategy | D2C Growth Pillar | CRO Guide