If the system still doesn't reply automatically reply to the customer reviews after you have turned on the Auto-Reply, it might be because:

1. It is less than 2 hours since the customer replied;

2. The auto-reply quota runs out (Need to upgrade the plan);

3. The store authorization has expired;

4. The customer review has been deleted;

5. The default positive reviews would not be auto replied;

6. API Error.