QR Codes Everywhere:

[Mitu100@]

Example: "Get daily stock market updates directly on WhatsApp! Opt-in now."
Contests/Giveaways:
Growth Hack: Announce a contest where opting into your WhatsApp list is a condition of entry.
Key: Ensure the prize is highly relevant to your target audience.
4. Leverage Offline Touchpoints
Don't forget the physical whatsapp number list world in Bangladesh.


Growth Hack: Place QR codes strategically in your physical store (e.g., at the checkout counter, on product displays, changing rooms), on receipts, product packaging, and even business cards.
Action: When scanned, the QR code should instantly open a WhatsApp chat with a pre-filled message that signals their intent to opt-in (e.g., "Hi, I'd like to join your WhatsApp updates!").
In-Store Sign-up Sheets:
Growth Hack: Have a tablet or physical form at your checkout or customer service desk where customers can explicitly provide their number and consent for WhatsApp communication. Train staff to briefly explain the value.
Event Marketing (Trade Fairs, Workshops in Dhaka/Chittagong).