WhatsApp tracks how customers react to a number's messages. Frequent blocks or reports push the quality rating down; positive engagement keeps it high. The rating is usually shown as high, medium, or low.
A low rating is a warning sign. If it stays low, WhatsApp can lower the number's messaging tier or place it under review, which restricts how many customers the business can reach.
The way to protect the rating is straightforward: message only opted-in contacts, keep content relevant, avoid over-sending, and segment lists so people receive messages they actually want.
