WhatsApp offers you the choice to manually activate the tool, in contrast to other of its more recent additions. The settings' notifications tab is where the reminders are operated. To use WhatsApp immediately, you will need the Android beta version 2.24.25.29.
Toggle between Settings, Notifications, and Reminders
WhatsApp will notify you of the unread messages on a regular basis when you enable the reminder feature. Additionally, according to WaBetaInfo's feature descriptions, WhatsApp will only do this for users you often chat or engage with. We were able to test our beta version for the function, which indicates that the formal launch may not be far off.