High Priority Transactional SMS for Business
Critical messages, OTPs, alerts and essential business updates
Critical Messages. Higher Priority. Smarter Communication.
When every message matters, businesses need a dependable way to communicate important updates. OnlineSMS High Priority Transactional SMS helps businesses send essential notifications such as one-time passwords (OTPs), account alerts, payment confirmations, order updates, booking notifications and service messages.
Integrate SMS messaging into your website, application or business workflow to keep customers informed at key moments. Choose a package that suits your messaging volume and validity requirements, and use the available account tools to manage your SMS activity.
OTP & Verification
Support login verification, account access and password-reset workflows with one-time passcodes.
Important Alerts
Keep customers updated about transactions, payments, orders, bookings and account activity.
Business Integration
Connect SMS messaging to supported websites, applications and business systems using available sending options.
Keep Customers Informed at Every Important Step
Common uses for transactional SMS
OTP & Account Security
Send verification codes and account-security notifications for supported authentication workflows.
Payment Notifications
Inform customers about payment acknowledgements, invoices and relevant account transactions.
Order & Delivery Updates
Share order confirmations, dispatch updates and delivery-related notifications.
Booking Reminders
Send appointment, reservation and schedule reminders with relevant details.
Service Notifications
Notify customers about service requests, maintenance and important service updates.
Subscription Updates
Send relevant membership, renewal and subscription-status notifications.
Features Designed for Business Messaging
Manage and integrate your transactional SMS workflow
Messaging Availability
Submit messages through the service according to your account access, plan and applicable operating conditions.
Delivery Reports
Use available reporting tools to review message status and monitor sending activity.
DLT Template Support
Send eligible messages using the applicable registered header and approved message template.
API Integration
Integrate supported SMS API functionality with your website, application or software workflow.
Multiple Sending Options
Depending on your account setup, send messages through the web portal or supported file and API-based methods.
Business Workflow Integration
Connect notifications with your customer-management or internal business processes where supported.
Choose Your Transactional SMS Plan
Compare package volume, validity and pricing to find the option that fits your business.
Pricing: Transactional High Priority
*w.e.f. 08-Nov-2026 GST @ 18% Extra| SMS Package | Validity | Total Price [ ₹ ] | Net Price [ ₹ ] | Buy Now |
|---|---|---|---|---|
| 10K | 12 Months | 2,150.00 | 2537.00 | |
| 25K | 12 Months | 5,250.00 | 6195.00 | |
| 50K6M | 6 Months | 10,250.00 | 12095.00 | |
| 50K | 12 Months | 10,600.00 | 12508.00 | |
| 1L6M | 6 Months | 19,500.00 | 23010.00 | |
| 1L | 12 Months | 19,700.00 | 23246.00 | |
| 1L1M | 1 Months | 16,000.00 | 18880.00 | |
| 5L | 12 Months | 97,000.00 | 114460.00 | |
| 10L | 12 Months | 190,000.00 | 224200.00 | |
| 10L6M | 6 Months | 185,000.00 | 218300.00 |
Please review the package details, validity, applicable taxes and terms before placing an order.
Getting Started with High Priority Transactional SMS
Important account and compliance information
Before sending messages in India, businesses must meet applicable operator and regulatory requirements, including the relevant Principal Entity registration, header and content-template approvals where required. Message category eligibility depends on the purpose and content of the message; promotional content must not be sent as transactional messaging.
Delivery times and final delivery outcomes may vary due to operator networks, recipient availability, message configuration and compliance checks. No fixed delivery time or 100% delivery rate is guaranteed unless expressly covered by the service terms.
- GST: 18% where applicable; confirm the final amount shown during purchase.
- Use the sender header and message template approved for your use case.
- Package validity and included credits are as displayed in the selected plan.
- Available sending methods, API access and delivery reports depend on your account and plan.
- Contact OnlineSMS for assistance with account setup, API integration or DLT registration requirements.
High Priority Transactional SMS FAQs
Answers to common questions before choosing a plan
What is transactional SMS used for?
Transactional SMS is commonly used for service-related messages such as OTPs, payment confirmations, order updates and account notifications, subject to applicable operator and regulatory classification rules.
Can I send promotional offers using a transactional SMS route?
Do not classify a message as transactional simply to send promotional content. The message purpose and content must match the applicable category and operator requirements. Use the appropriate promotional service for eligible marketing campaigns.
Do I need DLT registration or an approved template?
Requirements depend on the message category and applicable Indian telecom rules. Confirm the relevant Principal Entity registration, sender header and template requirements with your operator or OnlineSMS before sending.
Are SMS delivery times guaranteed?
No universal delivery time can be guaranteed. Delivery depends on operator routing, network conditions, recipient availability, message configuration and compliance checks.
How can I integrate transactional SMS with my application?
Where API access is available for your account, your application can submit eligible messages through the supported API. Visit the Contact page to discuss integration requirements.