Avoid Blocked Number
How do I avoid my WhatsApp number being blocked?
This article describes how WhatsApp Sender can help you to avoid your phone number being associated with a spammer, which would result in it being blocked by WhatsApp.
Use *|merge fields|* in your messages to ensure that each message is unique and personalized to the recipient. This will help WhatsApp to associate your phone number with a real person acting on behalf of a real business, rather than with a spammer.
WhatsApp Sender sends your messages at a maximum rate of 9 messages per minute. If you send 100 messages, for example, they will be queued in our system and sent at a rate of a few every minute. This send rate reduces the chances of your phone number being associated with a spammer by WhatsApp.
NOTE: WhatsApp has its own algorithm to detect whether a phone number is being used to send spam messages. WhatsApp Sender does not have any control over this algorithm. However, if your phone number does get blocked, you can change your phone number and continue to use your existing subscription.