Key Takeaways for Businesses in Bangladesh

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Goal: Boost engagement, generate excitement, and collect user-generated content or data.
How it works: Run a contest or quiz where participation happens via WhatsApp messages.
Example: Pringles ran an "Emoji Challenge" where users sent emoji-only messages, and the brand decoded them. Toyota ran a contest for their AYGO model where users had to "seduce" the car via messages, photos, and videos.

Why it works: Fun, interactive, and can go viral, significantly increasing brand awareness and user participation.
Opt-in is Paramount: All these examples rely on explicit customer whatsapp number list consent to receive messages. Never cold message.
Utilize the API: For anything beyond basic manual replies, you'll need the WhatsApp Business API, typically accessed through a local WhatsApp Business Solution Provider (BSP) like WaTheta, BotSailor, or Dianahost.

Personalization: The more personalized your messages are, the higher the conversion and engagement rates.
Interactive Elements: Use buttons, lists, images, and videos to make your campaigns more engaging and guide user actions.
Clear CTAs: Always tell your audience what you want them to do next.

Measure & Optimize: Track your campaign performance and iterate based on results.
These examples demonstrate the versatility of WhatsApp as a marketing channel, capable of driving diverse business objectives from direct sales to deep customer engagement.