Magento 2 Stock Notification can limit alerts per product when you use the right module or custom setup. Many stores need this feature to avoid sending too many updates at once. Some extensions let you set a limit for each product, each customer, or a specific time period. This helps reduce unwanted alerts and keeps messages more useful. Magento 2 Stock Notification tools also let you review past alerts before sending new ones. Always test the settings on a staging site to confirm stable results.