Payment Reminder SMS in India: DLT Compliant and Built for Collections

The complete guide

Payment Reminder SMS in India: DLT Compliant and Built for Collections: everything you need to know

What is a payment reminder SMS in India

Short answer: A payment reminder SMS in India is a short text message a business sends about an amount due, a pending invoice, an upcoming EMI or an unpaid payment link. It goes from a registered 6-character sender ID using DLT approved templates with {#var#} variables. On Com.Bot, SMS is one-way, so the message must include a payment link, phone number or wa.me link.

A payment reminder SMS in India is a short text message a business sends to remind a customer about an amount due, an invoice that is pending, an EMI that is coming up or a payment link that has not been completed. It is sent from a registered 6-character sender ID, also called a header, such as LUMASK, and it follows the templates you register on a DLT platform before sending.

On Com.Bot, payment reminder SMS is one part of a wider communication stack. The same platform runs WhatsApp Business API, Instagram DMs, Facebook Messenger, Google RCS and a website chat widget. You can send a reminder by SMS, then route customers who want to discuss the payment to WhatsApp, where a two-way conversation is possible.

Because SMS in India is one-way on Com.Bot, the message itself must carry the next step. That is usually a payment link, a support phone number or a wa.me link that opens a WhatsApp chat with your team. Customers cannot reply to the SMS, so the message has to make the action obvious.

• Sent from a registered 6-character sender ID
• Uses DLT approved templates with {#var#} variables
• One-way: customers cannot reply to the SMS
• Includes a payment link, phone number or wa.me link
• Billed separately from your Com.Bot plan

Why payment reminder SMS works for Indian businesses

Short answer: Payment reminder SMS works for Indian businesses because it reaches customers who miss app notifications or use feature phones, and it gives finance teams a clear delivery record for reconciliation. A short reminder with the amount and a payment link can recover overdue revenue. It fits into a sequence with WhatsApp or RCS follow-up, using the correct template category for each message.

SMS reaches customers who may not have WhatsApp notifications turned on, who use a feature phone, or who simply check text messages more reliably than app notifications. For a D2C brand, a coaching institute or a service business, a short reminder with the amount and a payment link can recover revenue that would otherwise sit overdue for weeks.

SMS is also useful when you need a record. A DLT registered template and a delivery report give you a clear trail of what was sent, to which number and when. That matters for finance teams that reconcile reminders against payments received.

The channel works best as part of a sequence. A utility reminder for an existing order or booking can go out by SMS, while a promotional nudge about a limited-time offer belongs in a marketing template and should respect DND rules. Com.Bot lets you run both from the same contact list, with the correct category for each.

• Reaches customers who miss app notifications
• Works on feature phones and smartphones
• Gives a clear delivery record for finance teams
• Fits into a sequence with WhatsApp or RCS follow-up
• Supports transactional, promotional and OTP categories

How to set up payment reminder SMS in Com.Bot

Short answer: To set up payment reminder SMS in Com.Bot, first register your business entity, 6-character sender ID and every template on a DLT platform, then add those details to your Com.Bot account. Import and segment contacts in the CRM, create templates with {#var#} variables, schedule sends, and review delivery reports in the dashboard.

Start by registering your business on a DLT platform. You need three things: the business entity, the sender ID or header (6 characters, for example LUMASK) and every message template you plan to send. Templates use {#var#} variables for names, amounts, due dates and links. Once approved, these details are added to your Com.Bot account so the platform can send through compliant routes.

Next, build your contact list in Com.Bot. You can import contacts into the CRM, which supports up to 1M to 5M contacts depending on your plan, and segment them by payment status, due date or order value. Then create your reminder templates in the automation builder or the bulk messaging module, choosing the correct category for each one.

Finally, schedule the send. You can trigger a reminder when an order is marked pending, when a due date approaches, or on a fixed cadence. Delivery reports appear in the Com.Bot dashboard, and you can set a follow-up action, such as sending a WhatsApp message to customers who did not pay within 48 hours.

• Register entity, header and templates on DLT
• Add DLT details to your Com.Bot account
• Import and segment contacts in the CRM
• Create templates with {#var#} variables
• Schedule sends and review delivery reports

DLT rules and compliance for payment reminder SMS in India

Short answer: DLT registration is mandatory for commercial SMS in India: the business entity, sender ID and every template must be registered before sending, with {#var#} variables and a declared category of promotional, transactional or service, or OTP. Promotional SMS goes only to numbers not on the DND registry and within TRAI permitted hours, while transactional and service messages can go to all numbers.

DLT registration is mandatory for commercial SMS in India. The business entity, the sender ID and every message template must be registered before sending. Templates use {#var#} variables, and the message category must be declared as promotional, transactional or service, or OTP. Sending an unregistered template or using a mismatched category can get the message blocked.

Promotional SMS goes only to numbers that are not on the DND (NCPR) registry and within TRAI permitted hours. Transactional and service messages, such as a payment due for an existing order or a booking, can go to all numbers. OTP messages are for one-time passcodes only. Choosing the right category is not optional; it determines who can receive the message and when.

SMS in India is plain text, 160 GSM characters per segment. If you want a customer to reply, include a wa.me link, a phone number or a payment link in the SMS. Never treat a cart reminder or an offer as a utility template; those belong in the marketing category.

• Entity, header and templates must be DLT registered
• Use {#var#} variables in every template
• Declare category: promotional, transactional or service, or OTP
• Promotional SMS respects DND and permitted hours

SMS vs WhatsApp vs RCS for payment reminders

Short answer: WhatsApp Business API is strongest for two-way payment reminders, since a utility template can prompt a payment due for an existing order and the customer's reply opens a 24-hour service window. Google RCS adds rich branded messages on supported Android phones. SMS is the reliable one-way option for wide reach in India, best used to notify and direct customers to WhatsApp.

WhatsApp Business API is the strongest channel when you want a two-way conversation. A utility template can confirm an order or remind a customer about a payment due for an existing order, and the customer's reply opens a 24-hour service window for free-form chat. If your customers are active on WhatsApp, that is often the first channel to try.

Google RCS Business Messaging adds rich messages with a branded sender, images, carousels and suggested reply buttons in the default messaging app on supported Android phones. It is useful when you want a more visual reminder with a tap-to-pay button, but the brand needs agent verification before launch.

SMS is the reliable option for customers who are not on WhatsApp or RCS, or who need a plain text reminder with a link. Because SMS on Com.Bot is one-way, use it to notify and direct, then move the conversation to WhatsApp when the customer needs to respond. A common pattern is SMS first, WhatsApp follow-up for anyone who clicks but does not pay.

• WhatsApp: two-way chat and utility templates
• RCS: rich branded messages on supported Android phones
• SMS: plain text, one-way, wide reach in India
• Use SMS to notify and WhatsApp to converse
• No automatic switching between channels

Mistakes to avoid and how to measure payment reminder SMS

Short answer: The most common mistake is sending a promotional offer as a utility template, since cart reminders and price drops are marketing. Another is omitting the next step, because customers cannot reply to SMS, so always include a payment link or wa.me link. Track delivery rate, payment link clicks and payment completion rate, and compare SMS against WhatsApp and RCS in the same dashboard.

The most common mistake is sending a promotional offer as a utility template. Cart reminders, back-in-stock alerts and price drops are marketing, not utility. Another mistake is forgetting the next step. Since customers cannot reply to the SMS, a reminder without a payment link, phone number or wa.me link leaves them stuck.

Sending too often is another risk. A reminder every day can annoy customers and hurt engagement. A better cadence is a first reminder a few days before the due date, a second on the due date, and a final follow-up a week later. For promotional SMS, respect DND and permitted hours, and keep the message short enough to fit in one or two segments.

To measure results, track delivery rate, click rate on the payment link and payment completion rate. In Com.Bot, you can compare SMS performance against WhatsApp and RCS campaigns in the same dashboard, then shift budget to the channel that recovers more payments. Keep an eye on template quality and adjust wording if delivery or click rates drop.

• Do not use utility category for offers or cart reminders
• Always include a payment link or wa.me link
• Avoid daily reminders; use a sensible cadence
• Track delivery, clicks and payment completion
• Compare channels and shift budget to what works

What payment reminder SMS costs in India

Short answer: Payment reminder SMS on Com.Bot is priced through quarterly plans plus separate SMS message charges. Silver is $149 or ₹10,000 per quarter, Gold is $349 or ₹23,000 per quarter, and Platinum V1 is $2,500 or ₹1,80,000 per quarter. SMS message charges are billed separately based on message category and the recipient's country, so ask the team for current rates.

Com.Bot plans are billed per quarter, every three months, never per month. Silver is $149 or ₹10,000 per quarter, Gold is $349 or ₹23,000 per quarter and is the recommended plan, and Platinum V1 is $2,500 or ₹1,80,000 per quarter. Each plan includes a set number of contacts, team members, bot triggers and external actions, with support SLAs that range from 12 working hours on Silver to 2 working hours on Platinum V1.

SMS message charges are billed separately from your plan, based on the message category and the recipient's country. Com.Bot does not publish SMS rates in this page; ask the team for current rates so you can budget accurately. Add-ons such as extra team members, social channels or ecommerce stores are $10 per month each, and expert help is available at $49 or $99 per hour depending on the topic.

There is no monthly conversation cap on Com.Bot plans, so you are not limited by a fair usage ceiling. Payment methods accepted for plans include cards, UPI, PayPal, crypto and bank transfer. Plans are non-refundable, and you can cancel anytime; service runs to the end of the billing period.

• Plans billed quarterly, not monthly
• Silver ₹10,000, Gold ₹23,000, Platinum V1 ₹1,80,000 per quarter
• SMS message charges billed separately
• Add-ons $10 per month each
• No monthly conversation cap

Frequently asked questions