How to change Alert policy of Back in Stock - Low Stock Step 1: Go to Alert policy. Go to Settings, then choose Alert policy. Step 2: Set up options.1. Back-in-stock alert.In the Back in stock alert section, you can change the Back in stock quantity threshold (How many products are in a location that the customers will receive notifications). 2. Low stock products.Tick on Enable low stock alerts to receive notifications when your products low stock. Then enter the Quantity threshold and the Received email. 3. Immediate alert.Tick on Enable immediate alert to receive an email immediately when your products sold out. Then enter the Received email, BBC emails, and Maximum Limit Per Day ( The maximum limit of emails received per day). Step 3: Click Update.