Sell everywhere. Fulfill with confidence.
Facebook Messenger orders, website sales, inventory, and courier bookings — all in one fast, easy-to-use system built for online sellers in Bangladesh.
No signup needed — explore a sample store with real orders, products, and Messenger leads already loaded.
Everything your online store needs
From the first “price?” message to the delivered parcel — SellLync handles the busywork so you can focus on selling.
Every customer message, one inbox
- ✓Auto-reply to the first message in Bangla, Banglish or English
- ✓When someone comments “price?”, SellLync replies under the post and sends the details to their inbox
- ✓Reply from SellLync on the same channel the customer used
Stock that keeps itself up to date
- ✓Cost price, selling price and stock for every product
- ✓Stock goes down automatically when an order is placed
- ✓Spot running-low and out-of-stock items at a glance
Book the courier in one click
- ✓Send the parcel to Steadfast straight from the order — no copy-pasting addresses
- ✓The tracking ID is saved on the order automatically
- ✓Your customer gets an SMS with the tracking ID (Pathao, RedX and Paperfly coming soon)
Spot risky orders before you ship
- ✓Type the customer’s number and see their delivered and returned orders in your shop
- ✓High-return numbers get a clear warning before you confirm
- ✓Call first or ask for an advance — and stop paying for returned parcels
Know your real profit on every order
- ✓Product cost, delivery charge and ad spend are taken out of every sale
- ✓See real profit per order, not just total sales
- ✓Track your total profit right on the dashboard
And much more
Order SMS
Automatic SMS when an order is confirmed, shipped and delivered, paid from your wallet.
Leads from chats
Buying messages and comments become leads you can turn into an order in one click.
Your own WhatsApp number
Customers chat with your business number and brand name.
Pay as you go
A prepaid wallet for SMS and WhatsApp, recharged with bKash, Nagad or card.
Official Meta connection
Connected through Meta’s official APIs, so your page stays safe.
Staff accounts
Owner, Manager and Agent logins for your team. Coming soon.
Why sellers choose SellLync
Built in Bangladesh, for the way Bangladeshi sellers actually sell — on Facebook, in Banglish, with cash on delivery.
Made for Bangladesh
Local couriers, bKash/Nagad/Rocket payments, BD mobile number checks and auto-replies in Bangla or Banglish. No foreign tool does all of this.
Every chat, one inbox
Messenger, Instagram and WhatsApp messages land in one place. Reply from SellLync on the same channel the customer used.
Stop losing money on returns
See a customer's past returns before you confirm, and call or ask for an advance when the risk is high.
Know your real profit
Profit per order after product cost, delivery charge and ad spend — not just total sales.
Official Meta connection
We use Meta's official APIs, not unofficial bots, so your Facebook page and WhatsApp number stay safe.
Your own WhatsApp number
Customers chat with your business number and your brand name, not a shared SellLync number.
Pay only for what you use
A fixed monthly plan plus a prepaid wallet for SMS and WhatsApp. Every charge is listed, and a failed SMS is refunded automatically.
Real people, local support
Call us, or visit our Dhaka and Moulvibazar offices. We help you connect your page, WhatsApp and courier.
Sales channels
Courier partners
Live now Coming soon
Simple, transparent pricing
Start free for 14 days. Pick a plan that fits your store — upgrade anytime.
- ✓1 page connected
- ✓Up to 200 orders/month
- ✓1 courier integration
- ✓Basic reports
- ✓Unlimited pages & orders
- ✓All courier integrations
- ✓Fake order alerts
- ✓Profit & loss analytics
- ✓Priority support
- ✓Multi-brand management
- ✓Advanced reports
- ✓Role-based staff access
- ✓Everything in Growth
- ✓White-label branding
- ✓Dedicated onboarding
- ✓Custom integrations
- ✓Everything in Business
Frequently asked questions
Can't find your answer? Talk to our team.
What is SellLync?
SellLync is an order, inventory and courier automation platform for online sellers in Bangladesh. Messages from Facebook, Instagram and WhatsApp, your orders, stock, courier bookings and profit all live in one dashboard.
Why should I use SellLync instead of other tools?
Most tools do one job: a chatbot, a courier panel or a spreadsheet. SellLync connects them all. A Messenger chat becomes an order, the order books the courier, the customer gets an SMS, and you see your real profit, all in one place. It is built for Bangladesh, with local couriers, bKash and Nagad payments, Banglish auto-replies, fake order alerts and local phone support.
What are the biggest benefits for my business?
You save hours of copy-pasting addresses into courier panels. You lose less money on returned parcels, because risky numbers are flagged before you confirm. No customer message gets missed across Messenger, Instagram and WhatsApp. And you know exactly how much profit each order made after cost, delivery and ad spend.
Do I need a website to use SellLync?
No. Most of our sellers run only a Facebook page. Connect your page and you can take orders from Messenger, Instagram and WhatsApp right away.
Which channels can I connect?
Facebook Messenger, Facebook and Instagram post comments, Instagram DMs, and your own WhatsApp Business number. Every message lands in one inbox, and you reply from SellLync on the same channel the customer used. Coming soon: LinkedIn company page posting and comment replies.
Which courier services are supported?
Steadfast is live today, with one-click parcel booking and tracking. Pathao, RedX, Paperfly, eCourier and Carrybee are coming soon. You will be able to use more than one courier and choose the best one per order.
Will my Facebook page or WhatsApp number get banned?
SellLync connects through Meta's official APIs, the same way approved business tools do. We don't use unofficial bots or browser tricks, which are what usually get pages restricted. As long as you follow Facebook's commerce and messaging rules, your page is safe.
How does the fake order alert work?
When you enter a customer's mobile number, SellLync checks that number's delivered and returned orders in your shop. Numbers with a high return history are flagged before you confirm, so you can call first or ask for an advance.
Can auto-replies be in Bangla?
Yes. You write your own auto-reply and comment-reply messages in Bangla, Banglish or English, and SellLync adds the customer's name automatically.
Do I need technical skills?
No. If you can use Facebook, you can use SellLync. Connecting your page, WhatsApp and courier takes a few minutes, and our team will help you on a call if you need it.
Is there a free trial?
Yes. Every plan starts with a 14-day free trial. You don't pay anything to sign up, and you choose a plan only when the trial ends.
How do I pay for my plan?
Pay with bKash, Nagad, Rocket, Visa, Mastercard or internet banking. All payments go through SSLCommerz, Bangladesh's licensed payment gateway.
What is the SellLync wallet?
The wallet is prepaid balance for usage-based extras such as order SMS, WhatsApp messages and AI replies. Recharge from ৳500, with bonus credit on larger packs. Every charge shows up in your wallet history, and a failed SMS is refunded automatically.
Can my staff use SellLync?
Staff accounts are coming soon. SellLync already has Owner, Manager and Agent roles built in, so an agent will be able to handle the inbox and orders without touching your settings or payments.
Is my shop's data safe?
Each shop's data is kept separate, all traffic is encrypted, and we never sell your data or your customers' data. See our Privacy Policy for details.
Can I cancel anytime?
Yes. There are no long-term contracts, so you can cancel whenever you want. Refunds follow our Refund Policy.
I need help getting set up. Who do I contact?
Call us at +880 9696 346803 or email support@streamlync.tech. We'll help you connect your page, WhatsApp and courier.
Log in or create your account
Questions? Our team can help
Want a demo or talking about the Enterprise plan — send a message, we reply fast.
Dhaka Office
SellLync, Dhanmondi 27, Level 7
27 Shaptak Square, Plot No. 380 (old 2)
Road No. 16 (Old 27), Dhanmondi, Dhaka
Moulvibazar Office
#335, Sylhet Road,
Moulvibazar, Bangladesh