By Source of Opt-in:

[Mitu4000]

Leads/Prospects: Users who have expressed initial interest but haven't converted.
New Customers: Those who recently made a purchase or signed up.
Active Customers: Regular buyers or users of your service.
Lapsed/Churned Customers: Those who haven't engaged recently or have stopped using your service.
VIP Customers: High-value, frequent purchasers.
By Product/Service Interest:

Segment based on the specific products, services, or categories customers have shown interest in or purchased.
Example: "Interested in Gadgets," "Purchased whatsapp number list Eco-friendly Products," "Signed up for Yoga Classes."
By Demographics (if ethically collected and relevant):

Age group, gender, location (city/state). Be mindful of privacy regulations and ethical considerations when collecting demographic data.
Example: "Customers in [City A]," "Customers aged 25-34."
By Behavior/Engagement:

Frequent Purchasers: Segment those who buy regularly.
Website Visitors: Those who visited specific pages but didn't convert.
Cart Abandoners: Users who left items in their shopping cart.
Engaged with Specific Campaigns: Those who clicked on a previous WhatsApp message link.
Support Queries: Customers who frequently contact support (might need more proactive communication).