WhatsApp Template Messages: Complete Guide with Bangla Examples (2026)
If you run a business on WhatsApp in Bangladesh, you have probably hit this wall: a customer messages you, you reply — and 24 hours later you cannot send them another message unless they write first. That is WhatsApp’s 24-hour window, and the only official way past it is a template message.
Template messages are the backbone of every serious WhatsApp Business API setup. They power order updates, delivery notifications, payment reminders, OTPs, and promotional campaigns. In this guide, we explain what they are, how to get them approved, what they cost in Bangladesh — and we include ready-to-use Bangla template examples you can copy.
What is a WhatsApp template message?
A template message (also called a highly structured message, or HSM) is a pre-approved message format that businesses can send to customers outside the 24-hour customer service window. Because the message is pre-approved, WhatsApp knows exactly what you are sending — that is why templates can bypass the window while free-form messages cannot.
Templates are sent through the WhatsApp Business API, not the regular app. This is one of the main reasons businesses upgrade from the WhatsApp Business App to the API.
The 24-hour window, explained simply
- When a customer messages you, a 24-hour window opens. Inside it, you can reply freely with any content — no template needed.
- Once the window closes, you can only reach the customer with an approved template message.
- This rule exists to stop businesses from spamming customers whenever they want.
Every campaign, order update, and reminder you send after the window is a template message. Getting them right — and approved — is a core skill for any WhatsApp marketing team.
Template categories and Bangladesh pricing
Templates fall into three categories, and the category decides what the message costs. Meta’s published Bangladesh rates:
| ক্যাটাগরি | Used for | Meta BD rate (per conversation) |
|---|---|---|
| মার্কেটিং | Promotions, campaigns, offers | ≈ $0.0732 (≈ ৳8.80) |
| ইউটিলিটি | Order updates, delivery, payment confirmations | ≈ $0.0113 |
| অথেনটিকেশন | OTPs and login codes | ≈ $0.0113 |
Rates from Meta’s public rate card; see the full breakdown with worked examples in WhatsApp Business API pricing in Bangladesh. Rates change periodically.
The pricing difference matters: a marketing campaign of 10,000 conversations costs roughly 6 times more than utility updates. Choosing the right category is not paperwork — it is budget.
How to write a template that gets approved
Meta reviews every template before it can be sent. Most rejections come from a handful of mistakes:
- Wrong category — using “marketing” for an order update (or vice versa) is the most common rejection.
- Bad placeholder format — variables must use the {1}, {2} format and be numbered in order.
- Misleading or spammy language — ALL-CAPS, excessive symbols, and urgency tricks get flagged.
- Links and numbers — URLs and phone numbers must be included in the template and pass review; short links are rejected.
- Missing context — a template that does not clearly state its purpose is harder to approve.
- Broken Bangla/Banglish — typos and mixed-script errors delay approval; keep the language clean and consistent.
General tips: keep templates short (1–3 sentences), make the purpose obvious, use one clear variable per line, and test on yourself before submitting. See campaign ideas that convert for more message-writing guidance.
Ready-to-use Bangla template examples
Order confirmation (Utility)
আপনার অর্ডার #{1} গ্রহণ করা হয়েছে! 📦
পণ্য: {2}
মোট: ৳{3}
আপনার অর্ডার ২৪ ঘণ্টার মধ্যে কুরিয়ারে তুলে দেওয়া হবে।
Delivery update (Utility)
হ্যালো {1}, আপনার প্যাকেজটি আজ ডেলিভারি হবে। 🚚
কুরিয়ার: {2}
ট্র্যাকিং নম্বর: {3}
সাপোর্টে কথা বলতে রিপ্লাই করুন।
Payment reminder (Utility)
প্রিয় {1}, আপনার অর্ডার #{2} এর পেমেন্ট এখনো হয়নি।
bKash-এ পেমেন্ট করতে: বিকাশ মেনু → পেমেন্ট → মার্চেন্ট নম্বর {3}
প্রশ্ন থাকলে রিপ্লাই করুন।
Abandoned cart reminder (Marketing)
আপনার কার্টে {1}টি আইটেম অপেক্ষা করছে! 🛒
মোট: ৳{2}
অর্ডার করতে এখনই রিপ্লাই করুন: অর্ডার
Login OTP (Authentication)
আপনার ওয়ান-টাইম পাসওয়ার্ড (OTP): {1}
এটি কারো সাথে শেয়ার করবেন না। ১০ মিনিটের মধ্যে ব্যবহার করুন।
Replace the {1}, {2}, {3} placeholders with real values in your system. Test the Bangla on a real phone before submitting — emoji and currency symbols (৳) render differently across devices.
Template messages vs free service messages
| Template (outbound) | Service (in-window) | |
|---|---|---|
| When? | Outside the 24-hour window | Inside the window |
| Approval needed? | Yes, per template | No |
| Cost | Per category rate | First 1,000/month free, then per rate |
| Best for | Order updates, OTPs, campaigns | Live support, replies |
Most good WhatsApp setups combine both: templates carry the automated messages; the service window handles real conversations. With coexistence, your team can keep chatting in the app while the API sends approved templates automatically.
সাধারণ প্রশ্ন
How long does template approval take?
Usually a few hours to a few business days. Templates that follow the category and formatting rules pass faster.
Can I send Bangla template messages?
Yes. Meta supports Bangla and Banglish (Bangla in Latin script). Keep the script consistent and test rendering on devices before sending at scale.
Do template messages cost money?
Yes. Marketing templates in Bangladesh cost about $0.0732 per conversation; utility and authentication templates about $0.0113. The first 1,000 service conversations per month are free.
Why was my template rejected?
Common reasons: wrong category, bad placeholder format, spammy language, or unapproved links. Fix the specific issue and resubmit — rejections are normal on the first try.
Send templates the official way — no bans, no grey-market tricks. Start your free 30-day trial on WhatsPing and automate order updates, reminders, and campaigns on the official WhatsApp Business API.