Why It’s a Mistake:
Over time, phone numbers can change, become inactive, or belong to users who no longer want to hear from you. Continuing to message them wastes your budget and can harm your sender reputation.
What to Do Instead:
Regularly audit your database to remove invalid, unresponsive, or unsubscribed contacts.
Use verification tools to check number validity.
Track engagement and remove inactive users after a set period.
5. Over-Messaging Subscribers
Why It’s a Mistake:
Too many texts can annoy subscribers, leading to opt-outs or complaints. SMS is cameroon mobile phone number list a personal space, and bombarding users breaks trust quickly.
What to Do Instead:
Limit the frequency of your messages (e.g., 2–4 messages per month).
Ensure each message provides real value (promotions, alerts, updates).
Allow users to manage their preferences (e.g., frequency, type of messages).