Bulk SMS, OTP & WhatsApp for E-commerce and D2C Brands in India

Run every message of the online shopping journey from one account: checkout and COD OTPs, order and payment confirmations, shipping and refund updates, and consented cart and sale campaigns, each on the right DLT category with pay-only-for-delivered SMS billing.

COD & checkout OTP (-T)Shipping & refund alerts (-S)WooCommerce SMS pluginSMS, WhatsApp & RCS

Start Free — 1,000 SMS Credits See Pricing

Pay As You GoPay only for delivered SMS

2-6 secTypical delivery time

99.9%Uptime SLA

10,000+Registered businesses

Quick Answer

Bulk SMS for e-commerce is the automated messaging an online store or D2C brand sends across the buyer journey: checkout and COD OTPs and order confirmations as transactional (-T) SMS, shipping, delivery and refund updates as service (-S) SMS, and cart or sale campaigns as promotional (-P) SMS or WhatsApp marketing templates with consent. SMSGatewayHub runs all of it through APIs and a WooCommerce plugin on Pay As You Go pricing.

E-commerce messaging at a glance

Which channel and DLT category each store message belongs to. Under TRAI's latest rules a transactional message responds to a purchase the shopper started, within 30 minutes; ongoing order updates are service messages; anything that sells is promotional.

Message	Channel	Category & suffix	When to send
Login, sign-up and checkout OTP	OTP SMS, WhatsApp authentication	Transactional -T; WhatsApp authentication template	Instantly when the shopper requests it
COD order confirmation OTP	OTP SMS, voice OTP fallback	Transactional -T	Right after a cash-on-delivery order is placed, before dispatch
Order placed and payment received	Transactional SMS, WhatsApp utility, email receipt	Transactional -T; WhatsApp utility	Within minutes of checkout
Packed, shipped and out for delivery with tracking link	SMS with whitelisted {#url#}, WhatsApp utility, RCS	Service -S; WhatsApp utility	At each shipping milestone
Delivery OTP at the doorstep	SMS, WhatsApp utility	Service -S	On the delivery day, before handover
Return pickup, refund initiated and refund credited	Service SMS, WhatsApp utility, email	Service -S	At each return and refund step
Abandoned cart and back-in-stock reminders	WhatsApp marketing, promotional SMS, RCS	Promotional -P with consent; WhatsApp marketing	Within the promotional time window, to opted-in shoppers
Sale launch, new collection and festive offers	RCS carousel, promotional SMS, bulk email	Promotional -P; WhatsApp marketing	Campaign days, to non-DND or consented customers
COD confirmation call for high-value orders	Voice SMS / IVR call	Service call, no offers in the script	Before dispatch when SMS OTP is not confirmed
Order help and feedback requests	Missed call or toll-free number, WhatsApp chat	Customer-initiated; replies in the 24-hour window are billed per message	After delivery or whenever the shopper reaches out

Never add a coupon or offer line to an order or refund template: it turns the message into -P and loses 24/7 DND delivery. See how categories work on transactional SMS and service explicit vs service implicit SMS.

Every SMSGatewayHub product your e-commerce business can use

One account, one wallet and one set of DLT templates for the whole store, from first visit to repeat order.

Transactional & service SMS

Order, payment, shipping and refund alerts that reach every buyer, DND included, around the clock. Transactional SMS

OTP SMS

WhatsApp Business API

Utility order updates, catalog messages and consented cart reminders with buttons, plus two-way support chat. WhatsApp Business API

RCS Messaging

Branded, verified product carousels and rich sale cards in the native Android inbox, with SMS fallback. RCS messaging

Voice SMS & IVR

Pre-recorded COD confirmation calls where a keypress confirms or cancels the order before dispatch. Voice SMS

Missed call & toll-free

Give shoppers a missed-call number to confirm a COD order, request a callback or opt in to offers. Missed call services

Bulk email

Invoices, order receipts, newsletters and new-collection launches from authenticated sending domains. Bulk email

WooCommerce SMS plugin

Send order status SMS, mobile login and 2FA from your WordPress store without writing code. WooCommerce SMS plugin

What changed for e-commerce messaging

Four rule and platform changes every online store in India should plan around now.

-T, -S and -P now visible to shoppers

Operators add a suffix to every header, for example AB-ABCSTR-S. Order confirmations sent within 30 minutes of checkout are -T, delivery and refund updates are -S, and service explicit has been merged into promotional -P.

Typed variables and whitelisted links

Each value must be tagged {#numeric#}, {#alphanumeric#}, {#url#} and so on, and every tracking link, app link or callback number must be a whitelisted CTA on DLT. See converted templates

WhatsApp bills per delivered message

Meta charges per delivered message by category. Service replies and utility templates inside the 24-hour customer service window are now billed per message too; only messages in the 72-hour free entry point from Click-to-WhatsApp ads stay free. Meta can recategorise an order update that carries an offer as marketing.

DPDP Rules on customer data

The Digital Personal Data Protection Rules are notified and phasing in. Plan clear consent notices at checkout, purpose-limited use of phone numbers and an easy way to withdraw marketing consent.

Why SMSGatewayHub

Why e-commerce brands choose SMSGatewayHub over other providers

A store sends millions of small, time-critical messages. These are the things that decide whether they arrive, comply and stay affordable.

Pay only for delivered SMS

Order and OTP volume spikes on sale days; you are billed for SMS that reach the handset, not every submission. Delivery-based billing

DLT templates done for you

Our team writes order, shipping and refund templates with typed variables, registers your tracking-link CTAs and maps the IDs. DLT priority support

Store-ready integrations

Use the WooCommerce plugin, or connect Shopify, Magento and custom stores through the HTTP API and webhooks.

Failover routing at sale-day scale

Multi-operator routing with automatic failover gives 2-6 second typical delivery and a 99.9% uptime SLA for checkout OTPs.

SMS, WhatsApp, RCS, voice and email

Fall back from WhatsApp or RCS to SMS automatically and send in Hindi and regional languages from one wallet.

Certified and trusted since 2009

ISO 27001, ISO 9001:2015, SOC 2 and VAPT tested, with 2,000+ enterprise clients. Trust Center

Question to ask any provider	SMSGatewayHub
Am I charged for undelivered order SMS and OTPs?	No. You pay only for delivered SMS.
Will you register my tracking links and callback numbers as CTAs?	Yes. Our DLT team whitelists them and maps your templates.
Can I plug it into WooCommerce without code?	Yes, with the SMSGatewayHub WooCommerce SMS plugin.
Do I get real operator delivery reports?	Yes, live delivery reports in the panel and API. See delivery reports
Can WhatsApp and RCS fall back to SMS?	Yes, from the same account and wallet.
Can I test before I buy?	Yes, start with 1,000 free SMS credits. Create a free account

Moving from another provider? Compare on our MSG91 alternative page or estimate monthly spend with the SMS cost calculator.

Ready-to-register DLT templates for e-commerce

Copy, adjust the brand name and submit. Every changing value carries a typed tag, amounts go without commas, and every link must be a whitelisted CTA.

Message (what the shopper sees)	DLT template (typed-variable format)	Suffix
482913 is your OTP to confirm your cash on delivery order ORD58213 at ABC Store. Do not share it with anyone.	{#numeric#} is your OTP to confirm your cash on delivery order {#alphanumeric#} at ABC Store. Do not share it with anyone.	-T
Thank you! Your order ORD58213 for Rs.2499 is confirmed. Track it here: https://abc.in/o/58213 - ABC Store	Thank you! Your order {#alphanumeric#} for Rs.{#numeric#} is confirmed. Track it here: {#url#} - ABC Store	-T
Your order ORD58213 has been shipped and will arrive by 14 Oct. Track: https://abc.in/t/58213 - ABC Store	Your order {#alphanumeric#} has been shipped and will arrive by {#alphanumeric#}. Track: {#url#} - ABC Store	-S
Your ABC Store order ORD58213 is out for delivery today. Share OTP 4821 with the delivery agent only on receipt.	Your ABC Store order {#alphanumeric#} is out for delivery today. Share OTP {#numeric#} with the delivery agent only on receipt.	-S
Refund of Rs.1299 for return RET4471 has been initiated to your original payment method. Help: 18001234567 - ABC Store	Refund of Rs.{#numeric#} for return {#alphanumeric#} has been initiated to your original payment method. Help: {#cbn#} - ABC Store	-S
Still thinking it over? The items in your ABC Store cart are waiting: https://abc.in/c/9x2 Reply STOP to opt out	Still thinking it over? The items in your ABC Store cart are waiting: {#url#} Reply STOP to opt out	-P

More examples on DLT sample templates. Register templates under your brand with DLT registration and follow the template registration process.

E-commerce customer journey on SMSGatewayHub

Map each stage of the shopper lifecycle to the channel that fits it best.

Sign-up and login
Verify new shoppers with OTP SMS or a missed call OTP and capture marketing consent on the same screen.
Checkout and COD
Send the order confirmation as -T SMS within minutes and confirm COD orders with an OTP or a voice confirmation call.
Shipping and delivery
Push packed, shipped and out-for-delivery updates as -S SMS with a whitelisted tracking link, or as WhatsApp utility templates.
Returns and refunds
Confirm pickup, refund initiated and refund credited as service messages, with a toll-free help number as the callback CTA.
Win-back and repeat orders
Send consented cart reminders, back-in-stock alerts and sale launches on RCS, WhatsApp marketing or promotional SMS.
Measure and refine
Track every message in live delivery reports and compare channel cost and response on one dashboard.

E-commerce messaging resource map

Where to go next on SMSGatewayHub, grouped by what your store needs to do.

I want to…	Go to
Check prices and estimate cost	All pricing · Transactional SMS pricing · WhatsApp pricing · SMS cost calculator
Get DLT-compliant	DLT registration · Sample templates · Sender ID & suffixes
Integrate with my store	WooCommerce plugin · Plugin setup guide · Developer API docs · HTTP API
See it in action	E-commerce use cases · Retail use cases · How e-commerce brands use SMS, WhatsApp and RCS
Fix delivery problems	DLT error codes · DLT SMS not delivered: fixes · Live delivery reports
Explore other industries	Logistics & courier · Banks & NBFCs · Hospitals · Education

SMS vs WhatsApp vs RCS for e-commerce: which to use when

Use SMS for anything that must arrive. OTPs, COD confirmations, order confirmations and delivery OTPs need to reach every shopper, on any phone, including DND numbers. Transactional (-T) and service (-S) SMS do that 24/7 with no app or data connection needed, which is why they remain the backbone of order communication.

Use WhatsApp for conversations and rich order updates. Utility templates can carry an invoice PDF, a product image or quick-reply buttons such as Confirm COD or Reschedule, and shoppers can reply for help. Cart reminders and offers go as marketing templates to opted-in customers only. Read how to automate WhatsApp messages for e-commerce.

Use RCS for branded, shoppable campaigns on Android. Verified sender names, product carousels and tap-to-buy buttons make sale launches and new collections feel like a mini storefront in the messaging app, with SMS fallback for phones that cannot receive RCS. See RCS messaging for e-commerce and D2C brands.

Most stores run all three from one SMSGatewayHub account: SMS for the guaranteed layer, WhatsApp for service and conversation, and RCS or promotional SMS for growth, with bulk email for receipts and newsletters.

Related Services & Guides

E-commerce Use Cases →

Order messaging workflows for online stores.

WooCommerce SMS Plugin →

Order SMS, mobile login and 2FA for WordPress.

OTP SMS Service →

Priority routes for checkout and COD OTPs.

WhatsApp Business API →

Utility and marketing templates with buttons.

Bulk SMS for Logistics →

Delivery OTP, tracking and NDR messaging.

DLT Sample Templates →

Templates in the typed-variable format.

Frequently Asked Questions

Which SMS route should an e-commerce store use for order confirmation?

Use transactional SMS with a -T header for an order or payment confirmation sent within 30 minutes of checkout, because it responds to a purchase the shopper started. Later shipping, delivery and refund updates go as service (-S) SMS. SMSGatewayHub registers both template types for you and delivers them 24/7, including to DND numbers.

Can I send abandoned cart SMS to DND numbers in India?

No, not without consent. A cart reminder sells, so it is promotional (-P) SMS: it goes only to non-DND numbers or shoppers who gave consent, within the promotional time window and with an opt-out. SMSGatewayHub helps you send cart reminders as promotional SMS or WhatsApp marketing templates to opted-in customers.

How does COD verification by OTP work for online stores?

When a shopper places a cash-on-delivery order, your store triggers an OTP SMS and asks them to enter it or reply to confirm before you dispatch. Because it responds to the order they just placed, it is a transactional (-T) message. With SMSGatewayHub you can add a voice confirmation call or a missed-call confirmation for shoppers who do not respond to the SMS.

Is a delivery OTP SMS transactional or service?

A delivery OTP sent on the delivery day is part of ongoing delivery information to an existing customer, so it is normally registered as a service (-S) template, while an OTP sent within 30 minutes of a shopper's own action is transactional (-T). Both reach DND numbers at any time. SMSGatewayHub's DLT team checks that each template sits in the right category.

How do I send WooCommerce order SMS in India?

Install the SMSGatewayHub WordPress and WooCommerce Pro SMS plugin, add your API key and map your DLT-approved templates to WooCommerce order statuses. It then sends order status SMS automatically and also supports mobile login and 2FA. Shopify, Magento and custom stores connect through the SMSGatewayHub HTTP API and webhooks.

Should e-commerce brands use WhatsApp or SMS for order updates?

Use both. SMS (-T and -S) is the guaranteed layer that reaches every phone, while WhatsApp utility templates add invoices, images and buttons and are billed per delivered message. SMSGatewayHub can send the WhatsApp version first and fall back to SMS automatically.

Can I put a tracking link in an order SMS?

Yes, but the link's domain must be whitelisted as a CTA on DLT and the template must use the {#url#} tag where the link appears. Generic public URL shorteners are rejected at scrubbing. SMSGatewayHub registers your tracking domain and callback numbers along with your templates.

How much does bulk SMS cost for an e-commerce business?

SMSGatewayHub uses Pay As You Go pricing: you buy credits as needed and pay only for delivered SMS. Exact rates depend on volume and route, so see https://www.smsgatewayhub.com/pricing or talk to sales on 1800 102 1822, and test first with 1,000 free SMS credits.

Automate every order message today

Get 1,000 free SMS credits, free DLT guidance and ready-to-register e-commerce templates. Go live on SMS, WhatsApp and RCS from one account.

Start Free Trial ☎ 1800 102 1822

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