Leveraging Existing Customer Data for Verification

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Your existing customer database can be a valuable source for verifying phone numbers. Cross-reference new opt-ins with your existing customer records to identify duplicates or discrepancies. For existing customers for whom you might not have explicitly verified phone numbers, consider a re-permission campaign via email or in-app messages, asking them to confirm their contact details for exclusive mobile-only offers. This leverages your current relationships to enrich your verified list.

Implementing Fraud Detection and Risk Analysis
Beyond simply verifying if a number is active, advanced solutions offer fraud detection and risk analysis for phone numbers. This involves checking for patterns associated with fraudulent behavior, identifying numbers linked to known spam shop activity, or detecting numbers with unusual usage history. Integrating such features into your verification process helps prevent malicious actors from entering your database and protects your marketing efforts from being exploited.

Employee Training on Data Collection Protocol
Even the most sophisticated verification tools are only as good as the data entered into them. Train your staff, especially those on the front lines (sales, customer service, retail staff), on the importance of accurate phone number collection and the verification process. Emphasize the need for explicit consent and how to correctly input numbers. Human error can be a significant source of invalid entries, so proper training is a crucial expert tip for maintaining a better verified phone number list.