If a customer initiates a conversation with you for support or inquiry, once their query is resolved, politely ask if they'd like to opt-in for specific types of messages (e.g., "Would you like to receive our weekly product tips and exclusive discounts?").
3. Implement Robust Opt-in Management & CRM Integration
To build a targeted list, you need a system to manage it. This almost always requires the WhatsApp Business Platform (API) and integration with a CRM.
WhatsApp Business Platform (API):
Essential for large-scale, automated, and whatsapp number list personalized messaging. It allows you to use chatbots, manage conversations with multiple agents, and integrate with other systems.
Crucial for message templates which are pre-approved by WhatsApp and allow you to initiate conversations outside the 24-hour window.
CRM (Customer Relationship Management) System:
Central Data Hub: Store all customer data, including their WhatsApp number, opt-in status, purchase history, website activity, preferences, and any segmentation tags.
Segmentation Engine: Your CRM will be the primary tool for creating and managing detailed customer segments.
Automation: Automate data flow from your opt-in points (website, ads) to your CRM, ensuring numbers are automatically tagged and segmented upon collection.
4. Segment Your WhatsApp List Effectively
Once you have opted-in numbers in your CRM, apply these segmentation criteria:
Purchase History: Customers who bought specific products, high-value buyers, frequent purchasers, first-time buyers.
Website/App Activity: Cart abandoners, users who viewed specific product categories, users who downloaded specific content.
Engagement Level: Active responders, those who clicked on previous WhatsApp messages, inactive users (for re-engagement campaigns).
Interaction with Chatbot: Based on answers provided to qualifying questions asked by your chatbot.