WhatsApp can quickly remind you about unseen messages: How it works - Nextvertical

WhatsApp's new invisible message reminder feature is designed to beautify the user experience by ensuring that important communications are not recorded. It works like this:

Interaction-Based Prioritization: The feature uses an internal set of rules to determine "necessary" contacts based on consumer interaction frequency. It consists of those you chat with most often or have marked as favorites. This data is stored locally for your device and is not uploaded to WhatsApp servers.

Unread Message Alert: If a message remains unread from such vital contacts, WhatsApp will send a non-intrusive notification to remind you to test it. This can help ensure that some important conversations are addressed.

Status Update Reminders: Similar to reputation updates, reminders are triggered for statuses posted through frequently used contacts or favorites. Users must enable this option manually through the notification settings

Beta testing: The feature is currently available in beta for Android users as part of version 2.24.25.29. WhatsApp is rolling it out step by step, and comments from testers will likely influence its final implementation.

User Control: Notifications can be customized or completely disabled in the app's notification settings, allowing users to manage how and after they receive these alerts.

These distinctive goals of increasing conversational efficiency and ensuring certain meaningful interactions are prioritized.