Data Protection Regulations: Comply with local and international data privacy laws like GDPR (Europe), LGPD (Brazil), or CCPA (California). These laws require that personal data be handled with care, including obtaining explicit consent and providing an easy way for users to opt-out.

Potential Use Cases for a WhatsApp Mobile Number Database
Customer Support: Provide quick and convenient support through WhatsApp, leveraging automated responses and real-time communication.
Marketing Campaigns: Send promotional messages, special offers, or event invitations directly to users' WhatsApp accounts.